1 . 在直三棱柱
中,
,
.
![](https://img.xkw.com/dksih/QBM/2021/4/26/2708246553362432/2798101936340992/STEM/d2e7efc620994d5f94922362f34924bb.png?resizew=200)
(1)求异面直线
与
所成的角的大小;
(2)求直线
与平面
所成角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45acdbac251ca6b76a166c1242e71df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c330e73dbbf9e2c0f2fb755461e3c898.png)
![](https://img.xkw.com/dksih/QBM/2021/4/26/2708246553362432/2798101936340992/STEM/d2e7efc620994d5f94922362f34924bb.png?resizew=200)
(1)求异面直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f7ba05c54b3de1f4378f7c8eb58328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
您最近一年使用:0次
2021-08-31更新
|
169次组卷
|
3卷引用:上海市亭林中学2020-2021学年高二下学期期中数学试题
上海市亭林中学2020-2021学年高二下学期期中数学试题上海师范大学第二附属中学2021-2022学年高二上学期期中数学试题(已下线)第3章 空间向量及其应用(基础、常考、易错、压轴)分类专项训练(原卷版)
名校
2 . 如图,四棱锥
的底面是正方形,
平面
,
.点
是
的中点,作
,交
于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/74e22484-1aa4-4ec2-8b98-0aa3047fc35a.png?resizew=183)
(1)设平面
与平面
的交线为
,试判断直线
与直线
的位置关系,并给出证明;
(2)求平面
与平面
所成的较小的二面角的余弦值;
(3)求直线
与平面
所成角的正切值.
![](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/829f9180ddd9aa1a0ee0dc520f4e0b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b7b9bf7332256ac478041957fa2a55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/74e22484-1aa4-4ec2-8b98-0aa3047fc35a.png?resizew=183)
(1)设平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
(3)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03428a8f91a5674cb8f54766c165f7e.png)
您最近一年使用:0次
2021-08-30更新
|
883次组卷
|
4卷引用:湖北省武汉市华师一附中2020-2021学年高一下学期期末数学试题
名校
3 . 如图,在
中,
为
的中点,
分别在边
上,满足
,
交
于
.现将
沿
翻折至
,得四棱锥
.
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718775407984640/2794555656404992/STEM/f31edaa4-2341-4615-b18f-b8754d29232a.png?resizew=345)
(1)证明:
平面
;
(2)若直线
与平面
所成角的正切值为
,且
在平面
内的射影在
的内部,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c08b68b6d8104ccbd3540b493603b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666e81326945f168fc30291f1bb2fc10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833ec2f9f93027c6f1f4147e77932725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa2a83fed9bf4cb09d84a980452e346.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2db2b1c641b93caae9b7a82441e4ba70.png)
![](https://img.xkw.com/dksih/QBM/2021/5/11/2718775407984640/2794555656404992/STEM/f31edaa4-2341-4615-b18f-b8754d29232a.png?resizew=345)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d2d217e9bcd059908f117dfc4d4259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da483ea548666d382d88f468d8372078.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
您最近一年使用:0次
名校
解题方法
4 . 如图,在棱长为
的正方体中,求
![](https://img.xkw.com/dksih/QBM/2021/5/21/2725910730407936/2793311977250816/STEM/81dccee23d904575afb5df05195ef838.png?resizew=203)
直线
与
所成的角的大小
直线
与平面
所成的角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://img.xkw.com/dksih/QBM/2021/5/21/2725910730407936/2793311977250816/STEM/81dccee23d904575afb5df05195ef838.png?resizew=203)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f6f93171329d508d491143b9d71f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c597ff77c65c5add6f50294e3eee9536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2021-08-24更新
|
365次组卷
|
3卷引用:海南省北京师范大学万宁附中2020-2021学年高一下学期期中考试数学试题
5 . 如图,四棱台
的底面是矩形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/330172c3-fed6-4ee4-9556-efc2ee288b50.png?resizew=171)
(1)证明:
平面
;
(2)设平面
与平面
的交线为
,求直线
与平面
所成角的正弦值的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a0c3a4e61b97fa9bc58f3179fc2958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0247cb8022f81d0897142a537ddbea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e9effc506d0373565c4394a6cf4e7f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/2/330172c3-fed6-4ee4-9556-efc2ee288b50.png?resizew=171)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adbe5de909b009cd31d076b19faa579f.png)
(2)设平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5c7bf9276315761b0b5517e2472e79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a39cf1a9eedda28c63f13ea478ec6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ee01e28681b584f85c8875f053b77b.png)
您最近一年使用:0次
2021-08-11更新
|
476次组卷
|
2卷引用:浙江省绍兴市2020-2021学年高一下学期期末数学试题
6 . 如图,在正四棱柱
中,
,
,M为棱
的中点
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/a9888988-b90e-4111-945b-4dadfff6b41b.png?resizew=125)
(1)求三棱锥
的体积;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8cb98c0adee7ca698d8b17dacb845b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/27/a9888988-b90e-4111-945b-4dadfff6b41b.png?resizew=125)
(1)求三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/283f3b88373640e012bbcd78931d1065.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5563473602e1b17d582a165b7b7b6b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
您最近一年使用:0次
7 . 在①使三棱锥
体积取得最大值,②使
这两个条件中任选一个,补充在下面问题中,并作答.
如图1,
是边长为2的等边三角形,
是
的中点,将
沿
翻折形成图2中的三棱锥,________,动点
在棱
上.
![](https://img.xkw.com/dksih/QBM/2021/5/28/2730702674894848/2782495186870272/STEM/5361c2178dac4946819191a921357aac.png?resizew=375)
(1)证明:平面
平面
;
(2)求直线
与平面
所成角的正切值的取值范围.
注:如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d3249bb162f76416a37c6964c21304.png)
如图1,
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a855335176fc36a15017f50a8561348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2021/5/28/2730702674894848/2782495186870272/STEM/5361c2178dac4946819191a921357aac.png?resizew=375)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b81fb655624ff75a5eab94de9b8c8e9.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
注:如果选择多个条件分别解答,按第一个解答计分.
您最近一年使用:0次
2021-08-09更新
|
278次组卷
|
7卷引用:湖南省郴州市嘉禾县第一中学2020-2021学年高一下学期5月月考数学试题
湖南省郴州市嘉禾县第一中学2020-2021学年高一下学期5月月考数学试题(已下线)专题8.3 空间点、直线、平面之间的位置关系(练)- 2022年高考数学一轮复习讲练测(新教材新高考)湖北省鄂州市2021-2022学年高一下学期期末数学试题(已下线)模块三 专题9(劣构题)拔高能力练(北师大版)(已下线)模块三 专题9(劣构题)拔高能力练(人教B)(已下线)模块三 专题9(劣构题)拔高能力练人教A版)(已下线)模块三 专题10(劣构题)拔高能力练(苏教版)
8 . 如图,在三棱锥
中,平面
平面
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/9a7faf59-e6c1-4da5-93eb-79aca8bc4b5f.png?resizew=163)
(Ⅰ)证明:
;
(Ⅱ)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78307cd417504554a4e2276fe24d1162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f4d90625e27f60f693cdc0a8f9b081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae40084257baa17b166abc34a816f55.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/9a7faf59-e6c1-4da5-93eb-79aca8bc4b5f.png?resizew=163)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52347c0ee2a318b4a9bd93af9ddea46.png)
(Ⅱ)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21665d21bbfb04410c78345de1fd15ae.png)
您最近一年使用:0次
9 . 如图,在四棱锥
中,底面
为平行四边形,
,
,
,
是线段
的中点,点
在平面
上的射影为线段
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/c1a31c43-357a-4ead-af84-5af090521b93.png?resizew=304)
(1)证明:
平面
;
(2)若直线
与平面
所成角为
,求二面角
的平面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5164a3cc47e266446d49127e2ef10c37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7cbfaec1d9dcaaf159b060163436113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/7/c1a31c43-357a-4ead-af84-5af090521b93.png?resizew=304)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c34b18525831f3eda7bb90be0199b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f239fbcc58fc15535db4b5084c4f7253.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa7bbd7831e9ff4f8cffc8889d34f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ad7f1d38fd15f39ee4eddc536b90ed.png)
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解题方法
10 . 如图1,
是直角三角形,
是直角,
,
是
的中点,
的平分线交
于点
,现沿
将
折成二面角
,如图2.
![](https://img.xkw.com/dksih/QBM/2021/6/21/2747911929004032/2782004262993920/STEM/498f6ee94f9544aeb97130e568fb9f96.png?resizew=450)
(1)若折成直二面角
,求
的长度;
(2)若
,求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ce6a315fc1142765e0cad32f26384dd.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/7cbce11aa19b8bd2bf6ee5a834e005de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3448091fc3cb31c12c92b2bdc3e6c1e4.png)
![](https://img.xkw.com/dksih/QBM/2021/6/21/2747911929004032/2782004262993920/STEM/498f6ee94f9544aeb97130e568fb9f96.png?resizew=450)
(1)若折成直二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3448091fc3cb31c12c92b2bdc3e6c1e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9601d29de0a884953b039ee72f0158fe.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d795e14e1c5873f1bb3af94998b46470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5975d4f63b16d5741e595e18bd4e41.png)
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