名校
解题方法
1 . 在棱长为2的正方体
中,P,E,F分别为棱
,
,BC的中点,O为侧面正方形
的中心,则下列结论错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9edc50f7febbc2d5d8dcdc23a3630a7.png)
A.直线![]() | B.直线PF与平面POE所成角的正切值为![]() | C.三棱锥![]() ![]() | D.三棱锥![]() ![]() |
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名校
解题方法
2 . 如图,已知正方体
中,
分别为棱
、
的中点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e12ef075231f9d4246417c0a9d527e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d396bc8cdde9d1ed203a3efafb4d7ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e3e67d56b946fd77a7f9d12222e0a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79fa259fccb129851a917df61664a7f7.png)
A.![]() | B.![]() ![]() |
C.![]() | D.RS与![]() ![]() |
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名校
3 . 如图,在圆锥PO中,AC为圆锥底面的直径,
为底面圆周上一点,点
在线段BC上,
,
.
平面BOP;
(2)若圆锥PO的侧面积为
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee53b05c54ff805e9928daa315d252cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a372560e41dbe1a873ac4e75b2a7892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5dd496ee0c1170ef6dcc48266ee444.png)
(2)若圆锥PO的侧面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/375025f01ec49e6d50e45cce5fee8d88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b507c50b8a9ddc2f241290eab2a4bdf.png)
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解题方法
4 . 如图,三棱台
中,
,
,
,侧棱
平面
,点D是
的中点.
平面
;
(2)求平面
和平面
夹角的余弦值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a566b100fb2ebe3d208f9b6527934218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b9d3d8df516ef1f38f3ccce7d8ba99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ecf072589c0f901d92f6bda111d841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d25e8fc3dda4f8b45491514b6e22a962.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a211ad5a06b505b8365a62c1946f3cb7.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a211ad5a06b505b8365a62c1946f3cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
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2024-06-12更新
|
397次组卷
|
2卷引用:重庆市杨家坪中学2023-2024学年高二下学期第二次月考数学试题
名校
5 . 如图,
为圆锥的顶点,
是圆锥底面的圆心,AC为底面直径,
为底面圆
的内接正三角形,且边长为
,点
在母线PC上,且
.
平面BDE;
(2)求二面角
平面角的正弦值;
(3)若点M为线段PO上的动点,当直线
平面ABE时,求AM与平面ABE所成的角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81dda4896c42a956051e6999ca0f8aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a929faf549d8b8f1cd36d7a98257ace.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/816b7f285cc55bbe5bf873538ba87230.png)
(3)若点M为线段PO上的动点,当直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0492b25f10ae45c39f8e9838519259.png)
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解题方法
6 . 如图,直三棱柱
的侧棱长为2,
,
,D,E,F分别为
,
,BC的中点.
平面
;
(2)若直线DE与平面ABC所成的角大小为
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb5b12692517a39c320f99a479eb055.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3570a95f68349fcd9417fcda62e78e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0a851907ada2ac2c3c4880a6736d28a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6dd051db98c531f9ef18cdfd793f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d9a8181f7a7fe7f3fac872ce9534f15.png)
(2)若直线DE与平面ABC所成的角大小为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d31d79927f9b7d0e911af5571e660575.png)
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名校
7 . 已知正方体
的体积为8,且
,则当
取得最小值时,三棱锥
的外接球体积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672a0ac4bc62eaf00f64faf4a561fe92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f65d6c33ad1f9b19d90e5fac8ce84fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146ea37856f1603b89c7db7d8e96093d.png)
您最近一年使用:0次
2024-05-24更新
|
466次组卷
|
2卷引用:重庆市西南大学附属中学校2024届高三下学期全真模拟集训(四)数学试题
解题方法
8 . 已知正方体
的棱长为1,
在棱
上运动,
在线段
上运动,直线
与平面
交于点
.
为中点时,证明:
平面
;
(2)若
平面
,求
的最大值及此时
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22adbc0da438220f9cace11b629d799b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cfbc0b5a8fbde804bd8425a4b76d207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d004d2d115b477ade6af7ddb93db0df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dba6f81070ac354f439a93e9d1a90c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e0bd4b30dc777ac9da80f6baa3eb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e0bd4b30dc777ac9da80f6baa3eb31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c66d99a6a8415ddad22bbed33b64cfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c216b8fe2cc34e6fdc3667c6536e88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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名校
9 . 如图,在正方体
中,点P满足
,
,则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/25/65f04eee-218d-46d3-b2e6-588bf60c0db3.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b50bbf306892a977d22365993ac2ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79296cd4046a71e163a8f3e647a176ae.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/25/65f04eee-218d-46d3-b2e6-588bf60c0db3.png?resizew=159)
A.对于任意的![]() ![]() ![]() |
B.对于任意的![]() ![]() |
C.若![]() ![]() |
D.存在![]() ![]() ![]() ![]() |
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名校
10 . 已知正四棱柱
的底面边长为1,
,点
在底面
内运动(含边界),点
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92535536bd3c2761724fd058427f95a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da957f6ccc274634a6daa90599449ed3.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() ![]() |
D.当![]() ![]() ![]() ![]() |
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