名校
解题方法
1 . 如图,在四棱锥
中,底面
是直角梯形,点
为
中点,
,平面
平面
.
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求证:平面
平面
;
(3)若
与平面
所成的角为
,求平面
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/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c7091ee7839d34c899c879de3b98795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4aa9084b8fe0fe05c4388d1f835587b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba8f7af0e091e082100c3cd7f8c487f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218054144a13435580cd132b9459546c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
您最近一年使用:0次
名校
解题方法
2 . 如图,在直三棱柱
中,
,
分别为棱
上的动点,且
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d157676c47a9b8f102adb3734fee05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfb9c088a7422e95f747701a626513d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b1ba2e2dbab8c7bec0dad6b63fcc5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1055cc6113535d708228f1de3307d2f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de70098ff89ac12b26af3778683d7a25.png)
A.存在![]() ![]() |
B.存在![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
您最近一年使用:0次
2024-06-08更新
|
821次组卷
|
5卷引用:2024届山东省德州市高考二模数学试题
3 . 如图,在三棱锥
中,
,
为
的中点,
为
内部一点且
平面
.
平面
;
(2)若
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4b8c6788bd10b93445b19339114827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7442b64b37f685bc3ae88ff450c1a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7592c4f01c8e06c7ee90df5b9413a9f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfc5d84c6593d9202ac81c4c87a6bd59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfaaf33272e9bfe785b0ccfced88ba2a.png)
您最近一年使用:0次
解题方法
4 . 如图,已知三棱锥
中,
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/ae693edc-ef9f-4c41-8795-edac4a71f911.png?resizew=165)
(1)证明:平面
平面
;
(2)点
满足
,求平面
与平面
所成角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777d5e78f55cda98757782758f3684cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/ae693edc-ef9f-4c41-8795-edac4a71f911.png?resizew=165)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d28c625d7ac6878957facc8274d459c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0938d02b4c65016e91f5665f68ea44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6439082496df7567acd5a31a3448db71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8010e1a73f05117a278860c1c0c7f147.png)
您最近一年使用:0次
解题方法
5 . 如图,在底面为正方形的四棱锥
中,
平面
,直线
与平面
所成角的正切值为
,则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/2855f57f-ceb9-4fa8-b1cf-7b38d0be3b8b.png?resizew=141)
![](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/f2567f25f07db4cb97e6915b8528fe3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/29/2855f57f-ceb9-4fa8-b1cf-7b38d0be3b8b.png?resizew=141)
A.异面直线![]() ![]() ![]() |
B.异面直线![]() ![]() ![]() |
C.直线![]() ![]() ![]() |
D.点![]() ![]() ![]() |
您最近一年使用:0次
23-24高三上·山东德州·期末
6 . 如图,在四棱台
中,底面
是边长为2的菱形,
,
,点
分别为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/b0ffc501-1610-4828-ae91-ccbcf4cb59f9.png?resizew=173)
(1)证明:直线
面
;
(2)求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf80b036459da6dcb841a4bbe3859fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e504d1b16e0f25116636d5387333c5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/b0ffc501-1610-4828-ae91-ccbcf4cb59f9.png?resizew=173)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a10a7981b44866946aa11f9a2298824c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1c04946340198af69170d4ebd4b42.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b0d903c63be7566fe2a5fa5bc0f221.png)
您最近一年使用:0次
23-24高三上·山东德州·期末
解题方法
7 . 在棱长为1的正方体
中,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
A.点![]() ![]() ![]() | B.面![]() ![]() ![]() |
C.直线![]() ![]() ![]() | D.点![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
8 . 如图,已知四棱台
的上、下底面分别是边长为2和4的正方形,
,且
底面
,点P,Q分别在棱
、
上.
(1)若P是
的中点,证明:
;
(2)若
平面
,二面角
的余弦值为
,求四面体
的体积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1880586c33da315e49ccb6e2d531c6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ecf072589c0f901d92f6bda111d841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/17/d2d8ba32-a1ad-43a5-a115-92136e4a2520.png?resizew=151)
(1)若P是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63e5b64f90a420f867e826e8dbef2239.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9abe6e8d1f4f1e8bdc46ddbae0cd789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab3e0dba5705e1d749cfb21ebbb2ed93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e866091156cbd7beea724fbbdb25082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7bce6eba5d07a34f24c5370c580ac7.png)
您最近一年使用:0次
2023-12-17更新
|
1055次组卷
|
20卷引用:山东省德州市第一中学2024届高三上学期1月月考数学试题
山东省德州市第一中学2024届高三上学期1月月考数学试题(已下线)每日一题 第5题 面面夹角 运用向量(高二)湖北省恩施州巴东县第一高级中学2023-2024学年高二上学期末数学试题(已下线)专题13 空间向量的应用10种常见考法归类(2)四川省德阳市2024届高三下学期质量监测考试(二)数学(理科)试卷(已下线)专题15 立体几何解答题全归类(9大核心考点)(讲义)-1(已下线)黄金卷02湖南省炎德英才2022届高三上学期12月联考数学试题重庆市南开中学2022届高三上学期12月月考数学试题湖南省名校联合体2021-2022学年高三上学期12月联考数学试题安徽省亳州市第一中学2021-2022学年高二上学期期末检测数学试题湖南师范大学附属中学2021-2022学年高三上学期12月联考数学试题(已下线)第03讲 空间向量的应用-【帮课堂】2021-2022学年高二数学同步精品讲义(苏教版2019选择性必修第二册)江苏省宿迁市沭阳如东中学2022-2023学年高三上学期9月阶段测试(三)数学试题(已下线)专题19 空间几何解答题(理科)-1江苏省南通市海门中学2022-2023学年高二下学期6月学情调研数学试题广东省博罗县2023-2024学年高二上学期期中数学试题广东省佛山市顺德区华侨中学2024届高三上学期12月月考数学试题四川省泸州市泸县第四中学2023-2024学年高二上学期12月月考数学试题湖南省长沙市湖南师大附中2024届高三上学期月考(四)数学试题
名校
9 . 把矩形
以
所在的直线为轴旋转180°,得到几何体如图所示.其中等腰梯形
为下底面的内接四边形,且
,点G为上底面一点,且
,
.
(1)若P为
的中点,求证:
平面
;
(2)设
,
,试确定
的值,使得直线
与平面
所成角的正弦值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d222ed2dcc0815631574bfba63c7cc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e65ac334119ccd6204402a7aba29a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80f51c31583fea58fde645474d60b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef088ced834a6c90c0113cb14cbb3ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bb930ea025c6dff321da1d268f0a80d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/30/9e701482-9323-4869-a99d-cceee8b8aa48.png?resizew=183)
(1)若P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95475bfc06e884754eb4a455c3f434e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34be4e71cabf458f17a6cd7f24bc70af.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0515adff91b7ab39e9e1fb88943ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90131175c3fb6a3837a22d7d5bbc268d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f29837db4ec4d0aeb8d7ad9fcb316d6.png)
您最近一年使用:0次
2023-10-11更新
|
480次组卷
|
4卷引用:山东省德州市第一中学2024届高三上学期期末数学试题