1 . 如图,四面体
中,
.
(1)求证:平面
平面
;
(2)若
,
①若直线
与平面
所成角为30°,求
的值;
②若
平面
为垂足,直线
与平面
的交点为
.当三棱锥
体积最大时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6c03029467212c952b89696f45456d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/23/2f9a3c3f-41a9-40b4-a456-a8b33158146b.png?resizew=164)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06123e81c41198c76a3335757fac2c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1e156c3e4ffa35ed0ac6526c8d8753d.png)
①若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4c26f3f4d96117f087400a0f32ece8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17622ea6f6f5afd1ad817a557e5889d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d742e749b1140b21512408d555f14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4fa04825ac7d071968056322d88be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4c26f3f4d96117f087400a0f32ece8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be743a99c9d9c2775ced96ccf86d178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91f0b8e4d79f6276b0ab054d887183a8.png)
您最近一年使用:0次
2024-04-19更新
|
730次组卷
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4卷引用:江苏省扬州市扬州中学2023-2024学年高二下学期5月月考数学试题
江苏省扬州市扬州中学2023-2024学年高二下学期5月月考数学试题江苏省南京市五所高中学校合作联盟2023-2024学年高二下学期期中学情调研数学试卷(已下线)模块三 专题2 解答题分类练 专题3 空间向量线性运算(苏教版)江苏高二专题02立体几何与空间向量(第二部分)
2 . 如图,在平行六面体
中,E在线段
上,且
F,G分别为线段
,
的中点,且底面
为正方形.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/10/64aaaa44-e421-4524-b946-30f03c57691a.png?resizew=172)
(1)求证:平面
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c480d2b007fa8675efc646f91e256df2.png)
(2)若
与底面
不垂直,直线
与平面
所成角为
且
求点 A 到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcbb8f28f80f9908f58f2d152e912766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd774c50250550d1c90f37ced4c0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17eaf5287e999c0adfe22f544d8e0945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/10/64aaaa44-e421-4524-b946-30f03c57691a.png?resizew=172)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bde810ee34535aa397501889a52b44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c480d2b007fa8675efc646f91e256df2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0215e13a9fb5574d5194aeb9507a98aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8946331b0a9d86e1a9c78797f3021455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3676ef5c9bde8f56ac5880b7f4aa1d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fda6215d1e6cb84f6a360b684634ea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/509356b0db34d34ff0fe25337a48e16a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5e5c12362a66c14785327a528b6f4c.png)
您最近一年使用:0次
2024-04-03更新
|
1592次组卷
|
2卷引用:河南省南阳市西峡县第一高级中学2023-2024学年高二下学期第一次月考数学试卷