2024·全国·模拟预测
名校
解题方法
1 . 如图,在三棱锥
中,点
为棱
的中点,点
为
的中点,
,
,
都是正三角形.
平面
;
(2)若三棱锥
的体积为
,求三棱锥
的表面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b506b0941433a6a5d5387d0ec95596ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93394d8a463f5ee5cbbbcb77a6771e09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce03b310edce42191f9fa75a1c909ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
(2)若三棱锥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c0874f019492261eb175bdcc08c189d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8ee3afb7e2c8943673449a1b136faf0.png)
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2024高一下·全国·专题练习
名校
解题方法
2 . 如图,已知四棱锥
的底面ABCD为平行四边形,
分别是棱
的中点,平面CMN与平面PAD交于PE. 求证:
平面
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fbb19cb4eb2d7f3207559eb07355ba2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edcf19a7f0dd0cdf59516ae585025110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852aabd89edffc1b94344ff3f1f31ccd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c89b039cb3a43295ae39d5328bf57f7.png)
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名校
3 . 已知向量
,
.
(1)若
,求
的坐标;
(2)若
,求
与
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e481e72c0b5b6268f18e2eb566368d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b53f3869ee83375e6408ef94e109fa.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076559f08d17fb25e82886e791719e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/296a8996c2484a4b0b03dd5778c7add8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
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2024-04-17更新
|
513次组卷
|
2卷引用:四川省遂宁市射洪中学校2023-2024学年高一下学期5月期中考试数学试题
名校
解题方法
4 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8158787900da5f72485c21a9d43a9e06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
您最近一年使用:0次
2024-04-17更新
|
573次组卷
|
2卷引用:四川省遂宁市射洪中学校2023-2024学年高一下学期5月期中考试数学试题
解题方法
5 . (1)已知
的坐标分别是
,求
的坐标.
(2)已知
,
,
与
的夹角为
,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bda7f62c81c812e7c7ca60b3296b070b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b11bd2b4b53d0a0df107ecd3bb7b01.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06c22fc9f7e478d49b9abfc4bd813902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407538138dd68ab917925c2063cc98e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39d1d88189726ae99c309644fca3494.png)
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解题方法
6 . 已知函数
.
(1)求
的值;
(2)当
时,求函数
的最大值与最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db79ab7299f81e9f6b3e6e608f0c0f58.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff2c63586f5ca0a0bec4ec2a3883b51.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解题方法
7 . 已知
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba1a1e7ee0c6172eb407df674f2aff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1131a101bd592b3badf388fedf4aedec.png)
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解题方法
8 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67ec66e417cc50b625e4171f5de987b.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4005a19f35a97468ccea9089edd6543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67ec66e417cc50b625e4171f5de987b.png)
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解题方法
9 . 已知向量
满足
,若
与
的夹角为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf872e7cc074d66ab4c144ab9f92ad4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338189ec20d1ec7fdbbc189d209428dd.png)
A.![]() | B.![]() | C.2 | D.1 |
您最近一年使用:0次
名校
10 . 已知
,函数
在
上单调递减,则
的取值范围是__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d8745eec10f3ccf3d228f427b976b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c074df2da520db901ca25c217e8c829.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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