名校
解题方法
1 . 已知四棱锥
中,底面
为直角梯形,
平面
,
,
,
,
,
为
中点,过
,
,
的平面截四棱锥
所得的截面为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/60d03f35-7a27-4a8e-95aa-6ad937654395.png?resizew=185)
(1)若
与棱
交于点
,画出截面
,保留作图痕迹(不用说明理由),并证明
.
(2)求多面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c2753753faf2cb9a0003aa8e3945159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80137ee8af4684ce558242d8b3f1459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/4/60d03f35-7a27-4a8e-95aa-6ad937654395.png?resizew=185)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ead5e71d659442776937400b19e230.png)
(2)求多面体
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673d35c60271a1f86876bf4005eee23c.png)
您最近一年使用:0次
2023-05-03更新
|
1110次组卷
|
4卷引用:广西邕衡金卷2023届高三一轮复习诊断性联考数学(文)试题
广西邕衡金卷2023届高三一轮复习诊断性联考数学(文)试题(已下线)高一数学下学期第二次月考01(范围:平面向量,解三角形,复数,立体几何)江西省新余市第一中学2022-2023学年高一下学期第二次月考数学试题(已下线)重难点6-2 空间几何体的交线与截面问题(8题型+满分技巧+限时检测)
名校
解题方法
2 .
是边长为2的正三角形,
在平面上满足
,将
沿
翻折,使点
到达
的位置,若平面
平面
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/a1c9460d-60ba-41b1-8df2-aa051eaa0bac.png?resizew=270)
(1)作平面
,使得
,且
,说明作图方法并证明;
(2)点
满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da35b5c539d7ac40137eb9f665571f53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147de24f071e316b68fd2e78e3c84545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee6765a83140d745a6de4c85d9b6b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b0255047b563fb5828ba05ea63049a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1095457a1433e68cc63eebe0d0c218c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/a1c9460d-60ba-41b1-8df2-aa051eaa0bac.png?resizew=270)
(1)作平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88edffc97ba3b98d5e8c9e55016fa018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcc1653fc8447569107a484816b27a7.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9da932bf1051907c0433c169fef04b14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a020a0605602f738285e67689f82eb4.png)
您最近一年使用:0次
名校
解题方法
3 . 如图1所示,在边长为3的正方形ABCD中,将△ADC沿AC折到△APC的位置,使得平面
平面ABC,得到图2所示的三棱锥
.点E,F,G分别在PA,PB,PC上,且
,
,
.记平面EFG与平面ABC的交线为l.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/6c137775-a663-4601-94f9-c773c9f1b07a.png?resizew=408)
(1)在图2中画出交线l,保留作图痕迹,并写出画法.
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1095b030f441de5fb223781b00f3dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715ef932b72eb703f3e7a17ee2ce6a7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1828795d52174dd64fba1c9ebe61072b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cf0ee918f8c2f753302d3b5928d358.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/28/6c137775-a663-4601-94f9-c773c9f1b07a.png?resizew=408)
(1)在图2中画出交线l,保留作图痕迹,并写出画法.
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
您最近一年使用:0次
4 . 如图,在四棱锥
中,平面
平面ABCD,
,
,点E在棱BF上,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/11/c14ee36e-3f43-49c8-b43e-4ab66c5df451.png?resizew=141)
(1)求三棱锥
的体积;
(2)判断直线AE与平面DCF是否相交,如果相交,在图中画出交点H(不需要说明理由),并求出线段AH的长;如果不相交,求直线AE到平面DCF的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5ba482836565abad208665cf7b9972.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf84ed033bd035c2fe7552badd5e447d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6ccd0fffd8d1df432d99f86f9f4678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90b9fa6f4dab63cb9d63a3330a0aba9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acb013aba6d3165c7512bd8b9957040.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/11/c14ee36e-3f43-49c8-b43e-4ab66c5df451.png?resizew=141)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/488eb032fffcac002d2c1877cc27c6cf.png)
(2)判断直线AE与平面DCF是否相交,如果相交,在图中画出交点H(不需要说明理由),并求出线段AH的长;如果不相交,求直线AE到平面DCF的距离.
您最近一年使用:0次
2023-04-10更新
|
471次组卷
|
4卷引用:广西桂林市、崇左市2023届高三一模数学(文)试题
广西桂林市、崇左市2023届高三一模数学(文)试题(已下线)专题13立体几何(解答题)广西壮族自治区防城港市2023届高三下学期4月第三次联合调研数学(文)试题(已下线)广东省佛山市2024届高三教学质量检测(一)数学试题变式题17-22
名校
解题方法
5 .
九章算术
商功
“斜解立方,得两堑
堵
斜解堑堵,其一为阳马,一为鳖
臑
阳马居二,鳖臑居一,不易之率也
合两鳖臑三而一,验之以棊,其形露矣
”刘徽注:“此术臑者,背节也,或曰半阳马,其形有似鳖肘,故以名云
中破阳马,得两鳖臑,鳖臑之起数,数同而实据半,故云六而一即得
”阳马和鳖臑是我国古代对一些特殊锥体的称谓,取一长方体,按下图斜割一分为二,得两个一模一样的三棱柱,称为堑堵
再沿堑堵的一顶点与相对的棱剖开,得四棱锥和三棱锥各一个.以矩形为底,另有一棱与底面垂直的四棱锥,称为阳马
余下的三棱锥是由四个直角三角形组成的四面体,称为鳖臑.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/2f4db74b-e7e3-4f58-a61b-90abce75befa.png?resizew=415)
(1)在下左图中画出阳马和鳖臑
不写过程,并用字母表示出来
,求阳马和鳖臑的体积比;
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/24b43e16-6ed4-4ea0-a84f-3aa49e073360.png?resizew=283)
(2)若
,
,在右图中,求三棱锥
的高.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b0e787c1d82071c825975348698f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e85bda46cc51c938224d9165301e3896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93dd4ee75eaf5d8f2e1c758cb18a0341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c3cf2e7ed24dadc34e6216a3f5c4bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e48ef01e30a6ec3dd9940fd767030e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d589e7b70f38ec2f41b68c889a56482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78be1239d7b3a80cead923442e1f8df5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2db9a58e185e4fd9c4f86efb24480f1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/2f4db74b-e7e3-4f58-a61b-90abce75befa.png?resizew=415)
(1)在下左图中画出阳马和鳖臑
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/31/24b43e16-6ed4-4ea0-a84f-3aa49e073360.png?resizew=283)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3813fa868b9a107058dc709145746437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9651b2b082f5de09e5a410804c4c2c0f.png)
您最近一年使用:0次
解题方法
6 . 如图,在四棱锥
中,
平面
,底面
满足
,且
,
,三角形
的面积为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08596ab7ad94031331c93db6f9ec549.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/93844118-2c54-463b-9d3e-fb4ae20aa9db.png?resizew=132)
(1)画出平面
和平面
的交线,并说明理由
(2)求点
到平面
的距离
![](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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e0a957a55460c72673c0f2ee90dbb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffbcd82b98a9ae69aa4ee28bb49a907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cfc9df9c661bd93b3f4f51f91534c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f08596ab7ad94031331c93db6f9ec549.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/8/93844118-2c54-463b-9d3e-fb4ae20aa9db.png?resizew=132)
(1)画出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
您最近一年使用:0次
解题方法
7 . 如图,在三棱锥
中,
和
均是边长为4的等边三角形.
是棱
上的点,
,过
的平面
与直线
垂直,且平面
平面
.
![](https://img.xkw.com/dksih/QBM/2022/3/31/2948126248697856/2950053674131456/STEM/ac605f5bd980499b8b395a3737b50d37.png?resizew=259)
(1)在图中画出
,写出画法并说明理由;
(2)若直线
与平面
所成角的大小为
,求过
及点
的平面与平面
所成的锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a94d59dee2d5a8f0425b64b2083825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9f63075fdeeb9e765dd696c4ff43ba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd4fce8e923062b9779553d6f282895b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d03c95a1e2e43a0b6a9992e83b8a24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a392d05d3cfcbb438569b1ea9980dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/670684ed4962fcebce7b5a140510d066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/863dd235346ce076540230e8eb4122f7.png)
![](https://img.xkw.com/dksih/QBM/2022/3/31/2948126248697856/2950053674131456/STEM/ac605f5bd980499b8b395a3737b50d37.png?resizew=259)
(1)在图中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a392d05d3cfcbb438569b1ea9980dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
名校
解题方法
8 . 如图为一块直四棱柱木料,其底面
满足:
,
.
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897002878722048/2926845450665984/STEM/e965b444-13ae-43bd-b609-5f5bac543f48.png?resizew=156)
(1)要经过平面
内的一点
和棱
将木料锯开,在木料表面应该怎样画线?(借助尺规作图,并写出作图说明,无需证明)
(2)若
,
,当点
是矩形
的中心时,求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adf90a8c2b29334cdc5aa5b554991f9.png)
![](https://img.xkw.com/dksih/QBM/2022/1/18/2897002878722048/2926845450665984/STEM/e965b444-13ae-43bd-b609-5f5bac543f48.png?resizew=156)
(1)要经过平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c52091eb745de866044477641a7c55f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8745717601cd14b46c2298919b41b502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f9660760804ff01bbc9319b7342191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b724168afaee2ecddf97257180be18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6795cae2df43a722e1355e9562d93c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f96c341e13ce6cbbc5975f0ef53001.png)
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2022-03-01更新
|
589次组卷
|
4卷引用:吉林省吉林市2021-2022学年高三上学期第二次调研测试数学(文)试题
吉林省吉林市2021-2022学年高三上学期第二次调研测试数学(文)试题(已下线)重难点03 立体几何与空间向量-2022年高考数学【热点·重点·难点】专练(全国通用)河北省石家庄市十五中2021-2022学年高一下学期期中数学试题(已下线)专题08 立体几何解答题常考全归类(精讲精练)-1
9 . 在三棱锥S—ABC中,△ABC是边长为2的等边三角形,∠SCA=90°,D为SA的中点,SC=BD=2.
![](https://img.xkw.com/dksih/QBM/2022/2/15/2916953539936256/2923569073471488/STEM/0b752edc-f087-45cb-9b28-3a80fb2af3f0.png?resizew=122)
(1)如图,过BD画出三棱锥S—ABC的一个截面,使得这个截面与侧面SAC垂直,并进行证明;
(2)求(1)中的截面将三棱锥S—ABC分割成两个棱锥的体积之比.
![](https://img.xkw.com/dksih/QBM/2022/2/15/2916953539936256/2923569073471488/STEM/0b752edc-f087-45cb-9b28-3a80fb2af3f0.png?resizew=122)
(1)如图,过BD画出三棱锥S—ABC的一个截面,使得这个截面与侧面SAC垂直,并进行证明;
(2)求(1)中的截面将三棱锥S—ABC分割成两个棱锥的体积之比.
您最近一年使用:0次
解题方法
10 . 在四棱锥
中,底面
为直角梯形,
,
,
,
分别为线段
,
的中点,
底面
,
.
![](https://img.xkw.com/dksih/QBM/2022/1/11/2892243942899712/2909378096832512/STEM/532d1e297e54449bb1e4722c8a66fd08.png?resizew=201)
(1)作出平面
与平面
的交线
,并证明
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d730ae4307db56b47849c3a19dedfb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4795ee1f96b430529934e2231b38885d.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db807b09cc550f476b3f8fa0c6a14425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e00a334aeb749a8177e1b5438d7d3e93.png)
![](https://img.xkw.com/dksih/QBM/2022/1/11/2892243942899712/2909378096832512/STEM/532d1e297e54449bb1e4722c8a66fd08.png?resizew=201)
(1)作出平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c0bfeadcf17b2a45896071f07a4a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f747eb5b2d21c9de962cbfd4ec4bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d27cf419c00c98e0212c1d441fa6ec.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c4554df2d60bde7377c63aad1f0e7b.png)
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