解题方法
1 . 若直线
和
平行,则
的值为____________ ;这两条平行线
与
之间的距离为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1063988b8cc085f7e20bb239ddb026f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e90479c578c7cbd77c8fba9e5c23de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
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名校
解题方法
2 . 直线
与圆
相交于
、
两点,若
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023ab3a7eb0f59993c7608576e47c0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781da357e7d4476069c7ed660413676c.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/2ddec9860f9292d83681f2cd6908976c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-03-13更新
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825次组卷
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6卷引用:浙江省宁波市六校2019-2020学年高二上学期期末数学试题
浙江省宁波市六校2019-2020学年高二上学期期末数学试题2015-2016学年山东曲阜师大附中高一4月月考数学试卷2016-2017学年四川省三台中学高二上小班周考数学试卷3四川省南充市第一中学2019-2020学年度第二学期期中考试高二文科数学试题(已下线)4.2.1 直线与圆的位置关系-2020-2021学年高一数学课时同步练(人教A版必修2)江苏省常州市华罗庚中学2022-2023学年高二上学期9月月考数学试题
名校
解题方法
3 . 已知
是圆
上一点,
,
,其中
.
(1)若直线
与圆
相切,求直线
的方程:
(2)若存在两个点
使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f74fe47c5d660b41489156cc3a593d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b5634528ca133fee203004bbc4789fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53e6be5556852a33941a2db6f4563f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995ec593baa4ef50b6d87c78380953d7.png)
(1)若直线
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若存在两个点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2020-03-05更新
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3卷引用:2020届浙江省绍兴市嵊州市高三上学期期末数学试题
解题方法
4 . 若直线
与直线
平行,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
_____ ,
与
之间的距离是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e4a45e79f51c7b5a9428f4cf2ab5c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f63080caf557613ca126503b920c8ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
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解题方法
5 . 在《九章算术》中,将底面是直角三角形的直三棱柱称之为“堑堵”,已知某“堑堵”的三视图如图所示,俯视图中虚线恰好平分矩形的面积,则该“堑堵”的正视图的面积是_____ ,体积是_____ .
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/05b6374b-76fa-402c-bbbd-30ad7e7096db.png?resizew=158)
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2020-03-05更新
|
229次组卷
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2卷引用:2020届浙江省绍兴市嵊州市高三上学期期末数学试题
名校
6 . 一个几何体的三视图如图所示,图中直角三角形的直角边长均为
,则该几何体表面积为______ ,该几何体的外接球半径为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/cf8a0174-c87f-4509-8fd3-df4c62b7acf3.png?resizew=158)
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名校
解题方法
7 . 如图:
平面
,
是矩形,
,
,点
是
的中点,点
在边
上移动.
![](https://img.xkw.com/dksih/QBM/2020/2/19/2402332989947904/2402429698990080/STEM/c74f674ee5f945a9afbe9283603dfbbf.png?resizew=200)
(Ⅰ)求三棱锥
的体积;
(Ⅱ)当点
为
的中点时,试判断
与平面
的位置关系,并说明理由;
(Ⅲ)证明:无论点
在边
的何处,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.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/0e7b6d04f024ca05cdfacc8ce9137c15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d783fe7f3ce673d5d21281174e7a7968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/2020/2/19/2402332989947904/2402429698990080/STEM/c74f674ee5f945a9afbe9283603dfbbf.png?resizew=200)
(Ⅰ)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37d1190fdc8609b1e43957aaaaf4abbe.png)
(Ⅱ)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(Ⅲ)证明:无论点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a395778dcf588264f40e1cd8c96206d.png)
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2020-02-19更新
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3卷引用:【新东方】杭州新东方高中数学试卷330
8 . 已知圆C:
内有一点P(2,2),过点P作直线l交圆C于A、B两点.
(1)当l经过圆心C时,求直线l的方程;
(2)当直线l的倾斜角为45º时,求弦AB的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02a420d06091c0fb4b43beffe322c16.png)
(1)当l经过圆心C时,求直线l的方程;
(2)当直线l的倾斜角为45º时,求弦AB的长.
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2020-02-11更新
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796次组卷
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18卷引用:2017届浙江名校协作体高三上学期联考数学试卷
2017届浙江名校协作体高三上学期联考数学试卷2016-2017学年浙江温州中学高二10月月考数学试卷2014-2015学年山西省大同市一中高二上学期期中考试文科数学试卷2015-2016学年江西省南昌十九中等三校高二上第一次联考数学试卷2015-2016学年福建省莆田二十五中高一下学期第一次月考数学试卷2016-2017学年新疆库尔勒四中高二上学期分班考试数学(文)试卷江西省赣州市寻乌中学2017-2018学年高一上学期期末考试数学试题福建省闽侯县第八中学2017-2018学年高二上学期期末考试数学(文)试题青海省西宁市第四高级中学2017-2018学年高二上学期期末考试数学(文)试题青海省西宁市第四高级中学2017-2018学年高二上学期期末考试数学(理)试题(已下线)2018年12月9日——《每日一题》高一 人教必修2-每周一测【校级联考】吉林省“五地六校”合作2018-2019学年高二 第一学期期末考试 文科数学试题甘肃省金昌市永昌四中2019-2020学年高一上学期期末数学试题湖北省鄂州市2019-2020学年高二上学期期末数学试题(已下线)专题09 直线与圆-备战2021年高考数学(文)二轮复习题型专练?(通用版)(已下线)专题11 直线与圆-备战2021年高考数学(理)二轮复习题型专练?(通用版)湖北省十堰市天河英才高中2022-2023学年高二上学期12月月考数学试题贵州省铜仁市思南中学2022-2023学年高一上数学期末质量检测模拟试题
9 . 已知四棱锥
,
,
,
,点
在底面
上的射影是
的中点
,
.
(1)求证:直线
平面
;
(2)若
,
、
分别为
、
的中点,求直线
与平面
所成角的正弦值;
(3)当四棱锥
的体积最大时,求二面角
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4472da088e7e7c2be14d970d471178b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5acb763021bf166ca719d07223591d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ff6d7dd48b57f03d82d2c522ee9b94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87261df80b82221732329b6ef3fdda7f.png)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30f457418e6a7e21f0ed0bf490a3709c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.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/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(3)当四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1069d514c3c32aeabd274475ee209ed6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/6477f034-ba55-43c9-9660-8f7869b0005f.png?resizew=217)
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2020-02-09更新
|
479次组卷
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2卷引用:浙江省金华十校2019-2020学年高二上学期期末考试数学试题
解题方法
10 . 如图,在三棱柱
中,侧面
是菱形,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/580c26c8-4fa1-4c2d-b693-b145c353c783.png?resizew=182)
(1)若
是线段
的中点,求证:平面
平面
;
(2)若
、
、
分别是线段
、
、
的中点,求证:直线
平面
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d89ba4036a5d18ec4abed44d7fd8e89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064a04589ae680482d23c3b08f820917.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/580c26c8-4fa1-4c2d-b693-b145c353c783.png?resizew=182)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a2e10a5aebe40a9018d5ee3ade7af8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbbfeda651af6a71a11f4bef378055c4.png)
(2)若
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd4c85bb98a2a0afddd7ed92578ad2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a1c282430c6b413153845b744ddf83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdb0295b373c6e306ca0dcf86f8b941.png)
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