解题方法
1 . 如图,在四棱锥
中,底面
为平行四边形,
分别为
的中点,点
在棱
上,且
平面
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c91fc8ae6c0a05a1a057f00c00cb27.png)
______ .
![](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/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f9499c94f38a54cb12092c7a58c19a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d300fc3d421b67abca2167f99f14d635.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38c91fc8ae6c0a05a1a057f00c00cb27.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/11/86583d91-bce0-4424-86f8-84992c31f1c0.png?resizew=180)
您最近一年使用:0次
名校
解题方法
2 . 已知向量
,则下列命题中真命题为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97bce9fa082e452f216e77cd170d4391.png)
A.若![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-07-08更新
|
327次组卷
|
3卷引用:广东省揭阳市2022-2023学年高一下学期期末数学试题
3 . 如图①,在平行四边形
中,
,将
沿
折起,使点
到达点
处,如图②,二面角
的大小为
分别为
的中点.
(1)证明:
;
(2)求直线
与平面
所成角的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f21ee6c1327cf0a83330a6cbe1742a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9f1e2b86f4eca37c72011d3dffb0c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c510de344543ccaf87accf5f3d5cefed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7366da07065712da11602f4afce8cbed.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/10/c9ec8b9f-b27a-403f-ad48-950ba6f2040c.png?resizew=426)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384ffba86ff08ce9e783d5d1bc51686.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
您最近一年使用:0次
解题方法
4 . 已知角
的终边经过点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ead91361f791a9a1ec356375de0808e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c4791487b6b2e238f1f6af880d69bcc.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 已知函数
.
(1)求
的最小正周期及单调递增区间;
(2)当
时,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28b5d3bba2a8ae87e3e01d3f05066674.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfaede450130de10824318d0b507e08b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
6 . 已知
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb9b0efac499de170bad4c012c211d96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e942c0d65b178ae109dc233af4a2d6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 在测量工作中,测得一组数据为2,6,7,5,9,17,10,则这组数据的平均数为______ ,第75百分位数是______ .
您最近一年使用:0次
8 . 我国的玉文化发源于新石器时代早期,绵延至今,贯穿了整个中华文明史,是中国传统文化的重要组成部分.如图是1986年在河南平顶山出土的西周(公元前1046—前771年)青玉琮,高
,边长
,内径
,体呈外方内圆状,中空,通体素面,则该青玉琮的体积约为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a547fba5c96aa80a4cd4eb8b60e08767.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a9eed64d225267a58cd001db67e2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8235c3f0deb46145b3c09a4b0076f45.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 如图,在正三棱柱
中,
分别在棱
上,
,
.
∥平面
;
(2)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b199a99e53d67ff4abf233930961a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ae8058e9063fc1f9c086a60ffbdb9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1d2e86b5fdb088f1cf306a50d9ff90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4339a40ae9d1947ec3a4b3e2fa3a16cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
(2)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afac7c616bbb14e1ed428a3c507c7dc.png)
您最近一年使用:0次
10 . 从以下三个条件中任选一个补充在下面问题中,并完成解答.
①
;②
;③
.
记
的内角
的对边分别为
,已知______.
(1)求
;
(2)若
,求
的面积.
注:如果选择多个条件分别解答,按第一个解答计分.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5471d007896ca6bdba93e24301c04ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171eb2e969cb5ae054b16882b4dd27c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b5718973b297997037cea33d09f6c6d.png)
记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c759e63d583983986ed53eb9b06fbf89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
注:如果选择多个条件分别解答,按第一个解答计分.
您最近一年使用:0次