名校
解题方法
1 . 如图,
是以
为直径的圆
上异于
,
的一点,平面
平面
,
是边长为2的等边三角形,
,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/395ad345-a00b-4f75-9a2d-65eb1718226e.png?resizew=162)
(1)求证:
;
(2)过直线
与直线
平行的平面交棱
于点
,线段
上是否存在一点
,使得二面角
的正弦值为
?若存在,求
的值;否则,说明理由.
![](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/1dde8112e8eb968fd042418dd632759e.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/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/395ad345-a00b-4f75-9a2d-65eb1718226e.png?resizew=162)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfbaf73297240eb116f22489519895a.png)
(2)过直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef523d7e6bcb947369297e2b82d95f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d02ae074c7c2f7dfde8058dfa55ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a037e6af24abbba2635a102d1b861e75.png)
您最近一年使用:0次
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|
400次组卷
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2卷引用:重庆市2022-2023学年高二上学期期末数学试题
名校
2 . 已知四棱锥
中,
平面
,
,
,点
在棱
上,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
平面
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/cff13d82-2168-428b-9d54-bb9868639b8d.png?resizew=185)
(1)证明:
;
(2)若
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](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/ee8ef58be8708144272538ee427fb92c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3087d08909ae0e14365e866ce4a4d0b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/10/cff13d82-2168-428b-9d54-bb9868639b8d.png?resizew=185)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a03d3b1a7b201f380f960db4b6ff2943.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1eee39a211e575d5eece4ee50e77c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f571a1aac46c6d0cf440c0ec2846bf9.png)
您最近一年使用:0次
2023-02-09更新
|
363次组卷
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2卷引用:重庆市2022-2023学年高二上学期期末数学试题
名校
3 . 下列有五个命题:①若直线a
平面
,a
平面
,
则a
m;②若直线a
平面
,则a与平面
内任何直线都平行;③若直线α
平面
,平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
平面β,则α
平面β;④如果a
b,a
平面
,那么b
平面
;⑤对于异面直线a、b存在唯一一对平面
、β使得a⊂平面
, b⊂平面β,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
β.其中正确的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92c166c4d75211e5294eb440bf2a6350.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb31ef428bd9de9bc875b343feded3c7.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
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4卷引用:河南省信阳高级中学2021-2022学年高一下学期检测(三)数学试题
河南省信阳高级中学2021-2022学年高一下学期检测(三)数学试题(已下线)专题8.10 空间直线、平面的平行(重难点题型检测)-2022-2023学年高一数学举一反三系列(人教A版2019必修第二册)(已下线)13.2.3 直线和平面的位置关系(1)天津市实验中学滨海学校2022-2023学年高一下学期期中数学试题
4 . 如图,在几何体
中,底面四边形
是正方形,平面
和平面
交于
.
(1)求证:
;
(2)若
,
,
,
,再从条件①,条件②,条件③中选择一个作为已知,使得几何体
存在,并求二面角
的余弦值.
条件①:平面
平面
;
条件②:平面
平面
.
条件③:
,
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ba3f676fda6a2aaaa55c9f32874a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10fc7991ea17d54ff5f4445ac5699463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666734423f1818d76a74f171b7420b68.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeedb5f361a1baff6338436fff6c471d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/869dbfaf24d441c4ce3a2b8db86cd2e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/678988261e6fd7c4f1199c0204a8045d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e384e0ffc3d599303b77ee2a12221e.png)
条件①:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c1acdd27cebb11e0266464b03b3afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
条件②:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec2af539ca4fdc2fa94d4986537b6598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
条件③:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8baaea02eaa7e473fb2a8f84ba575c25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd40e867f1d3377cf4fb9ae730d04cf7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/39c57e43-3369-43b9-bfb8-3cfd532e567a.png?resizew=167)
您最近一年使用:0次
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2卷引用:北京市第十三中学2023届高三上学期12月月考测试数学试题
名校
5 . 正方体
的棱长为4,
分别为
、
的中点,则平面
截正方体所得的截面面积为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
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4卷引用:上海市位育中学2022-2023学年高二上学期期末数学试题
上海市位育中学2022-2023学年高二上学期期末数学试题广东省东莞市东莞中学2022-2023学年高一下学期期中考试数学试题上海市晋元高级中学2023-2024学年高二上学期10月月考数学试题(已下线)期末真题必刷常考60题(32个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(沪教版2020必修第三册)
名校
6 . 如图,在棱长为4的正方体
中,E、F分别是AB、
的中点,点P是
上一点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
平面CEF,则四棱锥
外接球的表面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895d6f710d5f67e1d4c7408d50d77281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
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3卷引用:青海省海东市第三中学2022-2023学年高二上学期12月期中考试数学试题
青海省海东市第三中学2022-2023学年高二上学期12月期中考试数学试题(已下线)8.5.2 直线与平面平行【第三练】“上好三节课,做好三套题“高中数学素养晋级之路广东省广州市七中2023-2024学年高一下学期期中数学试题
名校
解题方法
7 . 如图,四棱锥
的底面为正方形,
平面
,
,
是侧面
上一点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/4/c41ddb34-8a8c-4f3b-a34d-8220e4a478aa.png?resizew=175)
(1)过点
作一个截面
,使得
与
都与
平行.作出
与四棱锥
表面的交线,并证明;
(2)设
,其中
.若
与平面
所成角的正弦值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b610c9b9948d88eda8de0fb8d1cf972.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/4/c41ddb34-8a8c-4f3b-a34d-8220e4a478aa.png?resizew=175)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2235edc73269b77b3208d38e243053f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f99989f4360c676c1c6ecd736eaf6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f35614aff055b98b76ca262f64e629d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83303d3784492506fc44f2b4d6b07bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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|
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5卷引用:重庆市2022届高三下学期开学考试数学试题
解题方法
8 . 五面体
中,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/410353fe-220b-4b60-8b28-c7dbaee37168.png?resizew=182)
(1)证明:
;
(2)给出①
;②
;③平面
平面
.
试从中选两个作为条件,剩下一个作为结论,可以让推理正确,请证明你的推理,并求出平面
和平面
夹角的余弦值.
注:如果选择不同组合分别解答,则按照第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1773fc257a6f487d80c422887dd56d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/856e8dc5903774a95bd29dcc2c9877bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35112927cf711e1c9fa4c7dd392465b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f94ab32614c7ec18fd8a7549d712d15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af21524a6664ab1321e8ee1d53277996.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/17/410353fe-220b-4b60-8b28-c7dbaee37168.png?resizew=182)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fdd872d41982e7b50ed2aba66595f8d.png)
(2)给出①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e3f834d569575e10b7b7af40ff4548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eff113d0df4877b8877721b05afb0321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5352d28609d1b3d09a0a29d023d1bb72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61510c34c5795d7261569b4d09098271.png)
试从中选两个作为条件,剩下一个作为结论,可以让推理正确,请证明你的推理,并求出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebce46aeb97373353179e5669365fa4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500df0e782bb081e608f4bc1d576afcf.png)
注:如果选择不同组合分别解答,则按照第一个解答计分.
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9 . 已知四棱锥P-ABCD的底面ABCD为正方形,
,F为棱PC上的点,过AF的平面分别交PB,PD于点E,G,且BD∥平面AEFG.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/35a3e333-e543-4b60-8c38-bc3b80bed6c5.png?resizew=183)
(1)证明:EG⊥平面PAC.
(2)若F为PC的中点,
,求直线PB与平面AEFG所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d0710321d97361e5782124bbf7f0c9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/35a3e333-e543-4b60-8c38-bc3b80bed6c5.png?resizew=183)
(1)证明:EG⊥平面PAC.
(2)若F为PC的中点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f59675193ae3ad89cc93503cf095a83.png)
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2023-01-03更新
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358次组卷
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4卷引用:河北省部分学校2023届高三上学期期末数学试题
河北省部分学校2023届高三上学期期末数学试题吉林省松原市前郭尔罗斯蒙古族自治县第五中学2022-2023学年高三上学期期末考试数学试题(已下线)江苏省盐城市、南京市2022届高三上学期1月第一次模拟考试数学试题变式题17-22(已下线)浙江省衢州、丽水、湖州三地市2022届高三(二模)数学试题变式题17-22
名校
解题方法
10 . 三棱台
的底面是正三角形,
平面
,
,
,
,E是
的中点,平面
交平面
于直线l.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/05030a34-c5f6-4325-b827-139a37c4caf6.png?resizew=155)
(1)求证:
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/570f8b295ee0c7c60e6fe1dbf054ff52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db57eca2a7cbd91bc57372592580a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d365ce9f4bacc4d4bb15dbdb5306a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/05030a34-c5f6-4325-b827-139a37c4caf6.png?resizew=155)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650f79ce93087959934d79c35b89582f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d365ce9f4bacc4d4bb15dbdb5306a5.png)
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2022-12-27更新
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1648次组卷
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8卷引用:江苏省南通市2022-2023学年高三上学期12月调研测试数学试题