点A、B在数轴上所对应的数分别是x、y,其中x、y满足
.
(1)求x、y的值.
(2)点D是
的中点,O为原点,数轴上有一动点P,直接写出
的最小值是__________;
的最小值是__________.
(3)数轴上有一点M,使得
,求点M所对应的数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ae19f50cd2ce24fc4ce8e9d6909e3aa.png)
(1)求x、y的值.
(2)点D是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13ec9a812274ad0839f20ba17348687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c2a4a8a134305b1ed303d95cc8c7d26.png)
(3)数轴上有一点M,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb5a25e298e7eb90f5a89f7774a4b7a.png)
23-24七年级上·福建厦门·阶段练习 查看更多[4]
福建省厦门市五缘实验学校2023-2024学年七年级上学期月考数学试题(已下线)第3章 一元一次方程(单元测试·拔尖卷)-2023-2024学年七年级数学上册基础知识专项突破讲与练(人教版)(已下线)第4章 一元一次方程(单元测试·拔尖卷)-2023-2024学年七年级数学上册基础知识专项突破讲与练(苏科版)(已下线)第5章 一元一次方程(单元测试·拔尖卷)-2023-2024学年七年级数学上册基础知识专项突破讲与练(北师大版)
更新时间:2023-10-18 23:26:49
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【推荐1】同学们都知道,|5-(-2)|表示5与-2之差的绝对值,实际上也可理解为5与-2两数在数轴上所对的两点之间的距离.如|x-3|的几何意义是数轴上表示有理数x的点与表示有理数3的点之间的距离.试探索:
(1)求|5-(-2)|=_____.
(2)若|x+3|=|x-1|,则x =_____.
(3)同样道理|x+2|+|x-3|表示数轴上有理数x所对的点到-2和3所对的两点距离之和,请你找出所有符合条件的整数x,使得|x+2|+|x-3|= 5,这样的整数是_________________________.
(1)求|5-(-2)|=_____.
(2)若|x+3|=|x-1|,则x =_____.
(3)同样道理|x+2|+|x-3|表示数轴上有理数x所对的点到-2和3所对的两点距离之和,请你找出所有符合条件的整数x,使得|x+2|+|x-3|= 5,这样的整数是_________________________.
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【推荐2】如图,点
,
在数轴上
点
在点
左侧
,
,
两点表示的数分别为
和
,点
,
之间的距离记为
.数轴上有另一点
,满足
.
(1)若
,
①求
;
②点
从点
出发,沿数轴向左运动,当
时,求点
所表示的数;
(2)若点
在点
,
之间,点
仍从点
出发,以每秒
个单位长度沿数轴向左匀速运动,同时点
从点
出发以每秒
个单位长度沿数轴向左匀速运动.设运动时间为
,当
时,求
的值
用含
,
的式子表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c0fa39f259591b0665515be5b870f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/23/0047b9e1-2403-4482-be0a-03d0f7611a42.png?resizew=155)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e311ea9afc18960be890c6f4271b027.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
②点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4a12cad0aee74aa860f219ec1545a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/073c802957bed52c2c72c3bf9395447e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58e8ae60ccd132a49aa4172e4298d0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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【推荐3】已知数轴上两点
对应的数分别是4,
,M,N,P为数轴上三个动点,点
从A点出发,速度为每秒2个单位长度,点
从点
出发,速度为
点的3倍,点
从原点出发,速度为每秒1个单位长度.
(1)若点
同时都向右运动1秒,此时数轴上
点表示的数为____;
点表示的数__;
点表示的数为___.
(2)若点
向右运动,同时点
向左运动,求多长时间点
与点
相距48个单位长度?
(3)若点
同时都向右运动,求多长时间点
到点
的距离相等?
(4)当时间
满足
(时间
大于
秒且小于
秒)时,
两点之间(包括
两点),
两点之间(包括
两点),
两点之间(包括
两点)分别有45 个、37个、8个整数点,请直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf3d3564c61e5e9c39a9e2cf2de048b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60c6db49930fbbab66b1fab54f5449e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c60c6db49930fbbab66b1fab54f5449e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
(4)当时间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965aa6dced9df1e44de36e0f13d64266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554d404e4bbfd34979a6a5f0d7924545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/554d404e4bbfd34979a6a5f0d7924545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fa1a95256d560546f907669493810b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fa1a95256d560546f907669493810b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
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【推荐1】如图1,数轴上A,B两点表示的数分别是
和3,将这两点在数轴上以相同的速度同时相向运动,若A,B分别到达M,N两点,且满足
(k正整数),我们称A,B两点完成了一次“准相向运动”.
(1)若A,B两点完成了一次“准相向运动”.
①当
时,M,N两点表示的数分别为 , ;
②当k为任意正整数时,求M,N两点表示的数;
(2)如图2所示,若A,B两点完成了两次“准相向运动”,并分别到达
两点,若k不变,求
两点所表示的数(用含k的式子表示);
(3)若A,B两点完成了n次“准相向运动”,并分别到达
两点,当
时,是否存在点
,使其表示的数为65?如果存在,求完成的次数n和此时点
所表示的数;如果不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/648531c9afe3852ba334e0cbd98861ee.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/5/69fbc20f-d5c3-4f32-8a59-17e1ced76d2d.png?resizew=232)
(1)若A,B两点完成了一次“准相向运动”.
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
②当k为任意正整数时,求M,N两点表示的数;
(2)如图2所示,若A,B两点完成了两次“准相向运动”,并分别到达
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c121f8f04b49c7036888316b5f35e93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c121f8f04b49c7036888316b5f35e93.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/5/f6d00342-4355-4e5a-88fc-83debeb9025e.png?resizew=266)
(3)若A,B两点完成了n次“准相向运动”,并分别到达
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f99a1e81ddef3f160acbd2209df62072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ddad3d9fdb5e9951b6a1c31f9a72a71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea30e7a3f7c68487d8bb224909b9455.png)
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【推荐2】对于数轴上不同的三个点
,
,
,若满足
,则称点
是点
关于点
的“
倍分点”.例如,如图,在数轴上,点
,
表示的数分别是
,1,可知原点
是点
关于点
的“2倍分点”,原点
也是点
关于点
的“
倍分点”.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/f055f019-02b5-4cee-ad2a-3178ef2ea8a9.png?resizew=230)
在数轴上,已知点
表示的数是
,点
表示的数是2.
(1)若点
在线段
上,且点
是点
关于点
的“5倍分点”,则点
表示的数是______;
(2)若点
在数轴上,
,且点
是点
关于点
的“
倍分点”,求
的值;
(3)点
从点
出发,以每秒3个单位长度的速度沿数轴正方向运动.当点
运动
秒时,在
,
,
三个点中,恰有一个点是另一个点关于第三个点的“
倍分点”,直接写出
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bf295b3a70996eb918ae1a823e1747c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/16/f055f019-02b5-4cee-ad2a-3178ef2ea8a9.png?resizew=230)
在数轴上,已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f26ad70d2b3aac8604834d57dfc59bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐3】定义:对于数轴上的三点,若其中一个点与其他两个点的距离恰好满足2倍的数量关系,则称它是其他两点的“2距点”.如下图,数轴上点
,
,
所表示的数分别为1,3,4,此时点
就是点
,
的一个“2距点”.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/15/eeebfcd9-26bd-4aac-949c-2cbba8b99c29.png?resizew=341)
(1)点
,
的其他三个“2距点”所表示的数是______,______,______;
(2)若点
表示数
,点
表示数4,数
,
,0,2,10所对应的点分别是
,
,
,
,
,其中不是点
,
的“2距点”的是点______;
(3)若点
表示的数是
,点
表示的数是15,点
为数轴上的一个动点.
①若点
在点
左侧,且点
是点
,
的“2距点”,求此时点
表示的数;
②若点
从点
以每秒3个单位长度的速度沿
轴正方向出发,当点
,
,
中有一个点恰好是另外两个点的“2距点”时,请直接 写出点
的运动时间
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/15/eeebfcd9-26bd-4aac-949c-2cbba8b99c29.png?resizew=341)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b9a5f1362c12e1ea8f6fc0d9d787ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01317332a203c898536b1d0459f51d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/384bef25d6a7f4c661e83498628c1409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc46e1fa087d602b5d041b99f3410de0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e22e1223baf7cb3d53e668c2449609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
②若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
【推荐1】在平面直角坐标系中,点A、B分别在x、y轴上,点
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/b622ce9d-3cd9-4c4b-a496-da62d9950c11.png?resizew=631)
(1)如图①,若a、b满足
,判断
的形状,并说明理由;
(2)如图②,若
即点A不变,点B在y轴正半轴上运动,以
为直角边,作等腰直角
,以
为直角边,作等腰直角
,连接
交y轴与Q,当点B在y轴上运动时,试猜想
的长是否为定值,若是,请求出来,若不是,说明理由;
(3)如图③,
若E点在x轴的正半轴上,且满足
,
于点G,交
于点H,探究:
的数量关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b9486ec9dca95979803bf91ca6c337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa6e5a12543f954be1a6057c6b2ed51.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/b622ce9d-3cd9-4c4b-a496-da62d9950c11.png?resizew=631)
(1)如图①,若a、b满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86bf5b18f0de64d7bdc1d1617d277e01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(2)如图②,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b624d88827e92e12bc0a8f1067cbe72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e742966e3711cfa53dce04022acf4bcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3954beda5772eb8d5de1002ddeb81524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
(3)如图③,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0f7c8294fbbed693b0a2a0864c1d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1a315327e3fe0cf69e0733f6dda9798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a244ef54439fdb0e081540333594ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9b2a71e096657188bb2c7ab399fd8b.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知数轴上
、
两点表示的数分别为
、
,且
、
满足
;点
、
沿数轴从
出发向右匀速运动,点
的速度为5个单位长度/秒,点
的速度为3个单位长度/秒,当点
运动3秒到点
时
正好从
出发;
(1)
________;
________;
(2)若点
、
一直向右匀速运动,点
到
点的距离是点
到
点距离的2倍,求
点对应的数;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/8/4c190352-6465-418e-98b3-d2cfab33bb03.png?resizew=255)
(3)若点
、
运动到点
,迅速以原来的速度返回,到达出发点后,
又折返向点
运动,点
运动至点
后停止运动,当点
停止运动时点
也停止运动.在点
开始运动后第几秒时,
、
两点之间的距离为1?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87292552a5b76ec1b10f371d51ac29fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/8/4c190352-6465-418e-98b3-d2cfab33bb03.png?resizew=255)
(3)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/8/f45e8ef3-536b-4331-83e2-9ff03c7c4e2e.png?resizew=253)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐1】如图,已知点
为直线
上一点,将一直角三角板的直角顶点放在点
处.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/13/f1bdb409-4318-4e19-a1cf-12678580b3ae.png?resizew=686)
(1)如图1,将三角板的一边
与射线
重合,过点
在三角板的内部,作射线
,使
,则
______.
(2)由(1)中的结论,如图2,将三角板绕点
按每秒
的速度沿逆时针方向旋转一周,在旋转的过程中,第
秒时,
所在的直线恰好平分锐角
,求此时
的值;
(3)将如图1所示的三角板
绕点
逆时针旋转
到如图3所示的位置,在
的内部作射线
使得
,则
的度数为多少?(用含a的代数式表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/13/f1bdb409-4318-4e19-a1cf-12678580b3ae.png?resizew=686)
(1)如图1,将三角板的一边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266cc323aed0e8b10721d9c3a2d9aea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e515787ebe97ed2662237d9ca51ea1.png)
(2)由(1)中的结论,如图2,将三角板绕点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f9c270c34c12a3253fcb14a70255cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)将如图1所示的三角板
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1eb76f88cb973c220cffa1c9c0721a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd69563797489f1f832335e49d6c57b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2f7bab4ed36ec5d04db3aeed2796f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1d24741b4163543dd753b0b0c7e0ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】如图1,
,点
在直线
上,点
在直线
上,射线
绕点
顺时针从射线
旋转至射线
后便立即回转;射线
绕点
顺时针从射线
旋转至射线
后便立即回转:射线
、射线
不停地来回旋转.若射线
转动的速度是
度
秒,射线
转动的速度是
度
秒,且
、
是方程
的正整数解.
(1)
,
;
(2)如图2,若
,两条射线同时转动,在射线
到达
之前,若两条射线交于点
,过
作
交
于
,若
,求
的度数;
(3)若射线
先转动30秒,射线
才开始转动,在射线
到达
之前,射线
转动几秒,射线
与射线
互相平行?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947aed0181a8c0bd81c6ebeba8d1ddc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4333bb203d02814c146ed587b69ea69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4333bb203d02814c146ed587b69ea69d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15c28dae8fe4180ecf5b32855dc44e4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/21/46eca6cd-8731-4006-b992-748d5aea5dda.png?resizew=678)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
(2)如图2,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e603d5cbbd35815bbfd2b83574e86f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de4a54cc7818be87a239f6de5f5d05b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3352bf4990b3e6d7f68e455803bfb1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
(3)若射线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
【推荐3】对于正数
,用符号
表示
的整数部分,例如:
,
,
.点
在第一象限内,以A为对角线的交点画一个矩形,使它的边分别与两坐标轴垂直. 其中垂直于
轴的边长为
,垂直于
轴的边长为
,那么,把这个矩形覆盖的区域叫做点A的矩形域.例如:点
的矩形域是一个以
为对角线交点,长为3,宽为2的矩形所覆盖的区域,如图1所示,它的面积是6.
![](https://img.xkw.com/dksih/QBM/2017/7/6/1724491599020032/1725956046577664/STEM/e2c1608c-9aaa-44d2-bfd9-1d7732fff97e.png?resizew=227)
图1 图2
根据上面的定义,回答下列问题:
(1)在图2所示的坐标系中画出点
的矩形域,该矩形域的面积是 ;
(2)点
的矩形域重叠部分面积为1,求
的值;
(3)已知点
在直线
上, 且点B的矩形域的面积
满足
,那么
的取值范围是 .(直接写出结果)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40e31bdcd249a3c595dd2c0e013693e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3458bde27e50e531728450e8a50080dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0af8b03b463fe2486eeabf18546227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7903097d9663549d86e6267da59537a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f97718a6ff5925e76934f5654038a588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a331ee38399ad76eb572b40cb11d49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a331ee38399ad76eb572b40cb11d49.png)
![](https://img.xkw.com/dksih/QBM/2017/7/6/1724491599020032/1725956046577664/STEM/d85a136b-45d8-48b6-ad88-d663a1bbb7b1.png?resizew=209)
![](https://img.xkw.com/dksih/QBM/2017/7/6/1724491599020032/1725956046577664/STEM/e2c1608c-9aaa-44d2-bfd9-1d7732fff97e.png?resizew=227)
图1 图2
根据上面的定义,回答下列问题:
(1)在图2所示的坐标系中画出点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64034352bdcb371ea3c6f3c94822d098.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938ee0e7eaa8a5267583c30a891be84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44bc2d382a41d3359c5259af148d96e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/725ae18b3f89c58f7b4e899f5615d455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次