在
中,
,
,点
与点
关于
对称,过点
作直线
,交直线
于
,交直线
于
.
![](https://img.xkw.com/dksih/QBM/2021/4/24/2706931967959040/2711162442104833/STEM/152e8b8c-ab2f-4206-b8ee-a4563f6ce048.png?resizew=513)
(1)在图1中补全图形,并写出
与
的数量关系______;
(2)当
时,直接写出
的度数______;
(3)当点
在射线
上移动(不与
、
、
重合),连接
,将线段
绕
顺时针旋转
得到线段
.
①求证:
、
、
三点共线;
②用等式直接写出线段
、
、
满足的数量关系(可用含
的式子表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a8ed4a03a13d82ae50be206d7c480d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed10df4140819d5451773a45de66201b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd8a97f37156cec6592795da3941f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/2021/4/24/2706931967959040/2711162442104833/STEM/152e8b8c-ab2f-4206-b8ee-a4563f6ce048.png?resizew=513)
(1)在图1中补全图形,并写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cae70b8a9d2d2e96dea62c00ced04b9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5018c1485ab34205b6dffda72edb4045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(3)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e322e0c87479bba874db9ae9ba36b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0e4d44f4fcc2e8081459b9c8989059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
②用等式直接写出线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31e55e398e8520d8a36fb5a625a085b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c83f1f880e5ffbff036953acaca90c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
更新时间:2021-04-30 20:57:01
|
相似题推荐
解答题-证明题
|
较难
(0.4)
名校
【推荐1】已知,在平面直角坐标系中,A点坐标为(0,m)(m>0),B点坐标为(2,0),以A点为圆心OA为半径作⊙A,将△AOB绕B点顺时针旋转α角(
)至
处.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/f38a4f22-83d8-488d-af18-f80f9569ce09.png?resizew=279)
(1)如图1,m=4,α=
,求
点的坐标及AB扫过的面积;
(2)如图2,当旋转到
三点在同一直线上时,求证:
是⊙O的切线;
(3)如图3,m=2,在旋转过程中,当直线
与⊙A相交时,直接写出α的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783d872617eed2bbd474035156b6caaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8089d380425c4b2a8e195664f9731f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/9/f38a4f22-83d8-488d-af18-f80f9569ce09.png?resizew=279)
(1)如图1,m=4,α=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12fe32dfbd66709875c5b9f79c9496da.png)
(2)如图2,当旋转到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea0017e92db283d658dd32960a13cde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7f06b201c9618bfa4da599f03d3de6.png)
(3)如图3,m=2,在旋转过程中,当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a88c23ed3ccb5f655dcccf9b53b0e6c.png)
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真题
【推荐2】已知
,
,
.
(1)找出与
相等的角并证明;
(2)求证:
;
(3)
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5fc4ad65b723b6a8da4c8dac154e6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3767efa8adfb71001ad39df9560cbf6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203beb7e2a43f2d628d3fe94040554de.png)
(1)找出与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f1a13346c7971d064ef14cecd9a9ed5.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ad08d2bfadadb5203a45b3d9e758a6.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca92ed4fa9f57071f1756a1e82c98ef0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b207b5a650034c5c75661af756f09a5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69f3445532f3a44a64a07792aafd062e.png)
![](https://img.xkw.com/dksih/QBM/2021/7/10/2761241254895616/2762106457202688/STEM/2636c2ab-eb5f-41ee-a7eb-a1c804784f98.png)
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解答题-作图题
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【推荐1】如图①,已知平面内一点
与一直线
,如果过点
作直线
,垂足为
,那么垂足
叫做点
在直线
上的射影;如果线段
的两个端点
和
在直线
上的射影分别为点
和
,那么线段
叫做线段
在直线
上的射影.
如图②,
、
为线段
外两点,
,
,垂足分别为
、
.则
点在
上的射影是________点,
点在
上的射影是________点,线段
在
上的射影是___,线段
在
上的射影是________;
根据射影的概念,说明:直角三角形斜边上的高是两条直角边在斜边上射影的比例中项.(要求:画出图形,写出说理过程.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e21965b17c479bfff0f69ea219acea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/295ae1b45876000eb1fe49cb4cfcb6c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/295ae1b45876000eb1fe49cb4cfcb6c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/295ae1b45876000eb1fe49cb4cfcb6c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d452411522a16b5c0314caac9d41f8ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f38703a1d1ca1c27de5e1422fb6d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53d7a9045b1478397816ca248377a3af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757c4bc7bf81e93925d99ce97ccab9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7982130fce0606edba8a76ba23717821.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f79d7939c88e9702962e5917cad290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://img.xkw.com/dksih/QBM/2018/11/13/2074891329339392/2136479241224192/STEM/e099ce11f54241a795089e342e6d77da.png?resizew=255)
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【推荐2】如图,在平面直角坐标系
中,点A、点B的坐标分别为
,经过
三点的圆的圆心为M,过点M的直线与
的公共点是D、E,与x轴交于点F,连接
.已知
.
的直径为 ,点M的坐标为 ;
(2)求直线
所对应的函数表达式;
(3)若P是线段
上的动点,
与
的一个内角相等,求
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2862b416a04155eb1356208a9672b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12feaf38b65db8088d0191c59677d907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9906e2857c243cc2facaecf6e41c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66269054b3335cbfe0a8fd3a68b0179a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fef27cb7cb1b666c1734c65a7aa9aa4.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
(3)若P是线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79ff575e55857af133edb24c8e61504f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ff8ae98a4922abf8c86c8028d9a067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6398f2557943357934d2858366fdbb09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
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解答题-作图题
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较难
(0.4)
【推荐1】探究题:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/24/46d67f8e-19e6-4dc5-9f31-4f9c76b7cf65.png?resizew=477)
(1)如图1,已知
,求作四边形
,使得四边形
的面积是
面积的2倍;
(2)如图2,在矩形
中,E为
边上一点,试在
的延长线上找一点
,使得四边形
的面积等于矩形
的面积,并说明理由;
(3)如图3,有一块五边形空地
,
,
,
,
,
,
,
,
,点F在
边上,且
,市政为了美化城市,计划将这块空地改造成一个花园,为了方便行人行走,计划在花园中间修一条过点F的笔直小路(路的宽度不计),使得小路的另一出口在
上的点Q处,且
恰好将五边形
的面积平分,请你帮助市政设计出小路
的位置(在图中画出
),并求出小路
的长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/24/46d67f8e-19e6-4dc5-9f31-4f9c76b7cf65.png?resizew=477)
(1)如图1,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)如图2,在矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44409b7b4ae8226657c0bd86114e1cdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a5a2949b3d520ed03d57126c7d4d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(3)如图3,有一块五边形空地
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d413f27f7bd1c6438df0d54931fd850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95db05eddcfaddb6a9515d83231a025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e932b4add3175358f15be0e1f7104e79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a165f441db0e5fb0b855f133bcc934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8781af6a99f3e2d520755db37231248a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/576005a68fbd58366245d41da4e5cab3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81151b5ab9c25834a2f68027247d3924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4a2774147ab0f24e2a0773aeee8ef81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632917e61f4208959686d118c7f19231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9142a8490de14a87eda628ffa7e28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632917e61f4208959686d118c7f19231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632917e61f4208959686d118c7f19231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632917e61f4208959686d118c7f19231.png)
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解答题-计算题
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【推荐2】如图1是一台放置在水平桌面上的笔记本电脑,将其侧面抽象成如图2所示的几何图形.若显示屏AO与键盘BO长均为24cm,点P为眼睛所在位置,D为AO的中点,连接PD,且PD⊥AO(此时点P为最佳视角),点C在OB的延长线上,PC⊥BC,BC=12cm.
(1)当PA=45cm时,求PC的长;
(2)当∠AOC=115°时,线段PC的长比(1)中线段PC的长是增大还是减小?请通过计算说明.(结果精确到0.1cm,sin65°≈0.91,cos65°≈0.42,tan65°≈2.14,sin25°≈0.42,cos25°≈0.91,tan25°≈0.47).
(1)当PA=45cm时,求PC的长;
(2)当∠AOC=115°时,线段PC的长比(1)中线段PC的长是增大还是减小?请通过计算说明.(结果精确到0.1cm,sin65°≈0.91,cos65°≈0.42,tan65°≈2.14,sin25°≈0.42,cos25°≈0.91,tan25°≈0.47).
![](https://img.xkw.com/dksih/QBM/2020/6/18/2487371251523584/2491607063666688/STEM/cede2b2f5173466eb406fc390340007f.png?resizew=286)
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较难
(0.4)
【推荐1】如图,已知正方形
,点M为射线
上的动点,射线
交
于E交射线
于F,过点C作
交
于点Q.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/4/0d66dede-2bda-46a4-9dc8-4b5ff4a6ba2a.png?resizew=253)
(1)当
时,求
的长.
(2)当M在线段
上时,若
,求
的长.
(3)①当
时,作点D关于
的对称点N,求
的值.
②若
,直接写出
与
的面积比_______.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e28101bce2b69c8bc3132077d6e7f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d1b730fab30aa5708ef923607b8910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/4/0d66dede-2bda-46a4-9dc8-4b5ff4a6ba2a.png?resizew=253)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa03fe455c3c777f1a200cb6967e469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a424b50eaeafa6f302ffd95476cb86.png)
(2)当M在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3aefe4c9addf498593cef19d2dac7c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/907d5147cea4c9ce855074864fe54506.png)
(3)①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c98df01b03ae547c39e924efc40661d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7246a273fc341d045e71e6d1c2af487.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79de67bad8473d74405f9200f0f7d7a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86643348a8164750d9aefcfe20fecb7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac83f9aad1493bac1fdd2d240cbfa10.png)
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解答题-问答题
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较难
(0.4)
【推荐2】如图,直线
交
轴于点
,交
轴于点
,抛物线
经过点
和点
,与
轴的另一个交点为点
.点
在直线
上方的抛物线上运动,且点
的横坐标为
,过
作
轴交直线
于
,作
轴于
,
交直线
于点
.
(2)若
的长为
,求
关于
的函数关系式;
(3)在点
的运动过程中,当
时,试求出
的值与
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae652daf6059ff386f99bef2210518c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58d88bbd34102b55fa928e8ff83f0d52.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/81dea63b8ce3e51adf66cf7b9982a248.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b274e355babbd1a4053c9cd0b2bb9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59fbd9b5e5d8be69373850d7faebdaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d58f9019097bd05037aefd5c322916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(3)在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b2a01347b5dfef01caa0b5d745dfc5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c25aaa27f28ca5dde8d6a030d743e6b1.png)
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