名校
1 . 如图,在三棱柱
中,平面
平面
,四边形
是菱形,
是
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/c4f8b5e3-ad6c-4aa2-ab48-0909ce3c9053.png?resizew=180)
(1)证明:
平面
;
(2)求直线
与平面
所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3d7090639341730951c1bc3c9b6164e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea9ed23ffaf5db5a40968381a293bb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed856ba2ba68f8fd2bf91140e3495ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/c4f8b5e3-ad6c-4aa2-ab48-0909ce3c9053.png?resizew=180)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b331bdbfa10e0d8197a0dc01af27d76c.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c96005da7f3ec57fb6c6001152d54ed9.png)
您最近一年使用:0次
2022-08-31更新
|
1213次组卷
|
4卷引用:湖南省部分校教育联盟2022-2023学年高三上学期入学摸底测试数学试题
名校
2 . 两条异面直线
所成的角为
,在直线
上分别取点
和点
,使
,且
.已知
则线段
的长为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354e1b631c1f46ed3aa1ce42fe498896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6640bb4ae84c81b1cce121cf072ea00f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/367484ab242a7be5329f7e9e90431844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c91ec84d2dbdcfbdf2c8394374f718f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1e3c217bc1b321980028d2c4342ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.8 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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3卷引用:湖南省部分校教育联盟2022-2023学年高三上学期入学摸底测试数学试题
湖南省部分校教育联盟2022-2023学年高三上学期入学摸底测试数学试题湖南省衡阳市第一中学2022-2023学年高三上学期第一次月考数学试题(已下线)思想01 运用分类讨论的思想方法解题(精讲精练)-1
3 . 如图,在三棱锥
中,
,D为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/fdab1e96-4173-41cc-bff1-ba125bffb98c.png?resizew=143)
(1)证明:
平面
;
(2)若E是棱
上的动点,当
的面积最小时,求
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/c6608c07105bb08293881eeaaf8ac3e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/fdab1e96-4173-41cc-bff1-ba125bffb98c.png?resizew=143)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fb2e071d4e01107dcf7d95cbb86b415.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)若E是棱
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03a4b95abad9895cce9c2c5c81b11089.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2bc5e50b8dfa02601c70822252854a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e6629d0e1a4ce3fe4f0345f6961473.png)
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4 . 在四棱锥
中,四边形
是直角梯形,且
平面
,
,点
在棱
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/31/02a4d617-ee65-4fec-a415-eec1fea55790.png?resizew=176)
(1)当
时,求证:
平面
;
(2)若直线
与平面
所成的角为
,二面角
的余弦值为
,求
的值.
![](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/5a1b49f64e0065edad868b25e9fcada3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e981f63409cdb1adb4428fe28ae8105d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c07f6961d2a065b432cde89f654138c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/31/02a4d617-ee65-4fec-a415-eec1fea55790.png?resizew=176)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df46cb89ec29c07e6d7b373cf845f7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373f735f0f04d11f1951eaef1bb78b6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af29254fe60a392c249c5791279e9c8.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a87ad143b4be9e23cf51b63c76b45c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0519ba613bf121a2c1bc28c948266d74.png)
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2022-08-30更新
|
835次组卷
|
2卷引用:安徽省部分校2023届高三上学期开学摸底考数学试题
名校
5 . 如图,在四棱锥
中,已知四边形
是梯形,
∥
,
,
,
是正三角形.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/9e3b72f8-3938-40a6-bb69-9a426b75c417.png?resizew=149)
(1)求证:
;
(2)当四棱锥
体积最大时,求:
①点A到平面
的距离;
②平面
与平面
夹角的余弦值.
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae2a696b84492a736c5b444e61b7ad96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/9e3b72f8-3938-40a6-bb69-9a426b75c417.png?resizew=149)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60964e720188e325eb18c9528b1fa95.png)
(2)当四棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
①点A到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
②平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e582d73b96ba649378379c3074d506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
您最近一年使用:0次
2022-08-30更新
|
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2卷引用:湖南省湘潭市2022-2023学年高三上学期入学摸底考试数学试题
名校
解题方法
6 . 如图,在长方体
中,E是
的中点,点F是AD上一点,
2,
,动点P在上底面
上,且满足三棱锥
的体积等于1,则直线CP与
所成角的正切值的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11875255224766f69d7fda20c2b12f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e4ba8b53e76a625f3c70b89c46fcc6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e634529c36bcf6aaf0859553b9fb72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632f2bf1cd0435041fa04b01901d1c8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90da0522dd9378bab25de2f560aec563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/31/d930f025-7fb1-41c3-a9a1-ca45555a1522.png?resizew=203)
您最近一年使用:0次
名校
解题方法
7 . 如图,在几何体
中,平面
平面
,
.四边形
为矩形.在四边形
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/b13e53aa-d593-4569-96d3-07db49f03cb4.png?resizew=198)
(1)点
在线段
上,且
,是否存在实数
,使得
?若存在,求出
的值;若不存在,请说明理由.
(2)点
在线段
上,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/9165d9bfbb0f0d19eb482c2a4c1b29b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5a68a008a22d5a8cea5fe8dcf31e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292db5a9c6f1f948dc62370d41f73b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dceb5cc71fc50f20649f6b9535fd914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9060f03b9ee41d70d135b1e1a8902ce9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc01b1ea3c7efd39d1454d408040d74b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/30/b13e53aa-d593-4569-96d3-07db49f03cb4.png?resizew=198)
(1)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45af6c24f1616dbeaecd92e4fdfedf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df55452b4b5fcdcb71f713b736f8b9e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1100379a4385b9ce064847bc21760adc.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09afc70f448545336304333d5b5658b.png)
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2022-08-30更新
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2卷引用:湖南省怀化市2022-2023学年高二上学期开学考试数学试题
名校
解题方法
8 . 在四棱锥
中,
,
,
,则该四棱锥的高为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3672967c7698cacdcd8053e3144ad8d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41c00d0de319a13eb51a3b020565469b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/658f57944079601630db95523010cff2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-08-30更新
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9卷引用:湖南省怀化市2022-2023学年高二上学期开学考试数学试题
湖南省怀化市2022-2023学年高二上学期开学考试数学试题安徽省滁州市定远县育才学校2022-2023学年高二下学期开学考试数学试题湖北省襄阳市部分学校2022-2023学年高二上学期9月联考数学试题湖北省孝感市部分学校2022-2023学年高二上学期9月联考数学试题山东省烟台市招远市第二中学2022-2023学年高二上学期10月月考数学试题湖北省襄阳市第二中学2022-2023学年高二上学期9月月考数学试题广西桂平市浔州高级中学2022-2023学年高二上学期贵港地区统考段考数学试题河南省郑州市郑州外国语学校2022-2023学年高二上学期第一次月考数学试题广东省惠州市实验中学2023-2024学年高二上学期10月月考数学试题
名校
解题方法
9 . 如图所示,在四棱锥
中,
平面
,
平面
,
,
,又
,
,
为
中点.
平面
;
(2)求平面
与平面
所成的锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef796b46e68fe77b117ff0483d2370c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ffc6952e988d04f22f0fb2f7f0ab7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef796b46e68fe77b117ff0483d2370c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e0b7d845cbceccd3e76ca461fcc534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7aeb2a8d1437eeb4482c3b6ad9f315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76d296e1cf0e421b3969c70064f6fcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb64061e933aea7669294640c331bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/defa5b53043ae802bb1af7d14374406d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1925035dc7e4d98cd72f96fbb60ec2d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d923a338dd2d2e29336b42574d38448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9c9cfa597b444b5c9dbae7a825a695.png)
您最近一年使用:0次
2022-08-30更新
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7卷引用:四川省成都市第七中学2022-2023学年高三上学期入学考试数学(理)试题
名校
解题方法
10 . 在多面体
中,平面
平面ABCD,EDCF是面积为
的矩形,
,
,AB=2.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/31/0bbdd865-f2b4-4ae4-98b0-5ebc1363d9ad.png?resizew=168)
(1)证明:
.
(2)求点D到平面ABFE的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2fc1129846f37afdafd751627c450d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ea464a0929a33bedd2ee95cdb66ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16aad38b43462ca7a8fb9bc9484ad3a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a75b1354b8b783a65ee5e3bc596a976.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/31/0bbdd865-f2b4-4ae4-98b0-5ebc1363d9ad.png?resizew=168)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cade9d1bac990f2014ff8310613e2613.png)
(2)求点D到平面ABFE的距离.
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2022-08-30更新
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3卷引用:河南省安阳市2022-2023学年高三上学期开学考试文科数学试题