解题方法
1 . 若向量
,
,
,则
的取值集合为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c054fc0cb6f1d5d8ab58797552fb8920.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6154b8ee793f576a0a55c79eae43a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f7d08d10754ff3903d139768f40530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 若三角形的三边长分别为20,30,40,则该三角形的形状一定是( )
A.锐角三角形 | B.直角三角形 | C.钝角三角形 | D.等腰三角形 |
您最近一年使用:0次
解题方法
3 . 已知两个单位向量
,
满足
,则
在
上的投影向量为( )
![](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/8cf0498d18dbbdad1c86c83259684fc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
4 . 若
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34136a7aeb0d1c3a2ec7467ffd6eda4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d059893330f6edd7b8b562626d925347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54329d41d66a0895ea6fd6c51eb3a04.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
5 . 若复数
,
,则
的共轭复数在复平面内对应的点位于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26a01253c28a6ea8f590c4cdb3f115a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7741f009666076297f8391657e733a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74819324120f97d4de47125f20098cf4.png)
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
您最近一年使用:0次
名校
6 . 已知偶函数
的定义域为
,对任意的
满足
,且
在区间
上单调递减,若
,
,
,则
,
,
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb19f15fa142fa8be5598817d9c2fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0b15afeffbde2f150e58f581e0b78d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/908b79d6a82793a84c2ad8352edb2001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c07d454537c7e4e8d3458f42322c0609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f484115a9df1b6060d6b14df85c6f38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35770a47ffcba6bf1d94eceabb416d96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee0882f5f575d9e0ae7677efbd41b38.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-06-13更新
|
287次组卷
|
2卷引用:山西省介休市第一中学校2022-2023学年高二上学期开学考试数学试题
解题方法
7 . 已知双曲线
的左焦点为
,过点
且斜率为
的直线与
的两条渐近线分别交于点
,且
分别位于第二、三象限,若
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3077277c62df410f7f45c5461e871157.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知三棱锥
中,
分别为棱
的中点,则直线
与
所成角的正切值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037e322f1800bde28ce7702ff0ba6d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83df4ba5dafddb78f414a83e17b471d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a8c60eb762b0951c61153fc17ba91b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d521a7a05519a48962323f89be9c5800.png)
则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d521a7a05519a48962323f89be9c5800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c39d580f96eb885e26f7d022498103.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f90b7a31140ad9c9e32b7d9d508b1e07.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 下列函数中既是奇函数,又在
上单调递减的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次