如图,在多面体
中,四边形
是矩形,
,
,
,
,平面
平面
.
(1)求直线
与平面
所成的角;
(2)求点
到平面
的距离;
(3)求二面角
的大小.
![](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/3602ec4c8f5ac2737fa78c05708c869f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c2ea11635394788485de28c144000f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aab4339f6797832d4ef88c5d58709fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5628323a7eeb11213df5c9048b3543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00bab17635a999236e8d2e35017a208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09d9d486b7f91ba933210dd013a7f2c.png)
(3)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382940a9e0b1a45d525e5f2460c015ea.png)
![](https://img.xkw.com/dksih/QBM/2011/2/25/1570012745007104/1570012750372864/STEM/0bfb072a85484d3e898d9ef0fdd9a1dc.png?resizew=198)
10-11高三·四川成都·阶段练习 查看更多[1]
(已下线)2011届四川省成都外国语学校高三2月月考数学理卷
更新时间:2016-11-30 14:22:01
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】如图,已知直三棱柱
,O,M,N分别为线段
,
,
的中点,
为线段
上的动点,
,
.
,试证
;
(2)在(1)的条件下,当
时,试确定动点
的位置,使线段
与平面
所成角的正弦值最大,并求出最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bb49fdc6b6bbb2449fdf8a0de769d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640f5cb447d9df80a756b3d60be92eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4494a85de0be0b97a69348115aef8513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c52e5ec20544d709d98ea8fcf9df73a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074d16f22e98d705cdf1a3322aed3bb3.png)
(2)在(1)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
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适中
(0.65)
【推荐2】如图所示,二面角
的大小为
,
,
,且
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/a687c9c1-079b-48f0-acb1-135e4f393984.png?resizew=170)
(1)求
与
所成角大小;
(2)求
与
所成角大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754bbd99327195520a4ca3ce3b9a0577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf2d033664f89ef059ac8303622a3bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca773f62b64bef9e2a2befe436a5dd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08ee0ddf2508e7f07ffbe5635033c931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c638fb895acd987140d0ca6bef097499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0a2d7d40a6c0bf1fddb802db381689.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc34db5860990e51ba31edc8cdd077c2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/a687c9c1-079b-48f0-acb1-135e4f393984.png?resizew=170)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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解答题-证明题
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适中
(0.65)
名校
解题方法
【推荐1】如图,在三棱锥
中,
是边长为4的正三角形,
,
,点
在底面
上的投影为点
.
![](https://img.xkw.com/dksih/QBM/2022/4/13/2957146743906304/2958153052717056/STEM/51e97295827d4c1085c7792653f0c998.png?resizew=205)
(1)求证:平面
平面
.
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbfcae2cecc98e2d6c16dde6d3ec1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7b593497504e969c0eee7323ea788b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2022/4/13/2957146743906304/2958153052717056/STEM/51e97295827d4c1085c7792653f0c998.png?resizew=205)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a438393ddfc7da1804baf4932442bb35.png)
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【推荐2】如图所示五面体
,四边形
是等腰三角形,
,
,
,
.
(1)求证:平面
平面
;
(2)若四边形
为正方形,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbc56d42b003cbcb1fbe5c50e55b26b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bde0ef03a8126eae1429a4eb04dcc99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d1caba3f7dbf49ee64af3cfdd47507.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f49d1de7c6dfc04b6e84e23eec0a1d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc1a7ac08428440f64dd640e03716ee.png)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6dd051db98c531f9ef18cdfd793f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61510c34c5795d7261569b4d09098271.png)
(2)若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a28d6477c85c5a4ac410a884e92fbe53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32c809e15d3013d7523dc8649f7d9006.png)
![](https://img.xkw.com/dksih/QBM/2018/5/27/1954538730700800/1957838758617088/STEM/0dcf837827b8411aa04bd0e957f9e75d.png?resizew=182)
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解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐1】如图,边长为2的等边
所在的平面垂直于矩形ABCD所在的平面,
,M为BC的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/b26a1961-ead6-4580-889c-608a3088b86d.png?resizew=172)
(1)证明:
;
(2)求平面PAM与平面ABCD的夹角的大小;
(3)求点D到平面AMP的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c1ac2e11788860424508ea9e80cf89d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/b26a1961-ead6-4580-889c-608a3088b86d.png?resizew=172)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbcc91180cb7cc891f78dd3b1516e697.png)
(2)求平面PAM与平面ABCD的夹角的大小;
(3)求点D到平面AMP的距离.
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【推荐2】如图,在四棱锥
中,
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05805df52363ca8901e320cd287615f6.png)
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/5ec21aac-c72a-4ec9-ab94-16a4a94b826e.png?resizew=160)
(1)求证:平面
平面
;
(2)若
为
的中点,点
在
上,且
,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/05805df52363ca8901e320cd287615f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20fd798391ec66a29235c9e93d79025b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fe0f5ed96e7cd5d6b9e7b85583d985.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/19/5ec21aac-c72a-4ec9-ab94-16a4a94b826e.png?resizew=160)
(1)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342d452a7b850cd3a15b23619ad39bd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)若
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4eebde0291ae62d02a498b56358ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a32bd7a1b78b5a0ec562c4025aea8c.png)
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