解题方法
1 . 已知向量
满足
,
,
,
.则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612afa7b97b18b8194457ae225293153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417a0aeb831a1530594b41dcc1829df1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a600402d668cfc808ecb2cbd990f9f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc11e7549cfce9220e70250ac943e457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37dd0802f896556180545ae356e90c7a.png)
A.若点P在直线AB上运动,当![]() ![]() ![]() |
B.若点P在直线AB上运动, ![]() ![]() ![]() |
C.若点P在以r = ![]() ![]() ![]() |
D.若点P在以r = ![]() ![]() ![]() |
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2 . 已知直线l经过点
,曲线
.下列说法正确的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9b41e8cc050a0616f10f13d6780bc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c2e0e252050187668d3e1e0b32eacb.png)
A.当直线l与曲线![]() ![]() |
B.当直线l与曲线![]() |
C.当直线l与曲线![]() ![]() |
D.存在定点Q,使得过![]() ![]() |
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3 . 已知正方体
的棱长为2,点E、F分别是棱
、
的中点,点P在四边形
内(包含边界)运动,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11ddc92d84d188c66b435664a7e7b5a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
A.若P是线段![]() ![]() ![]() |
B.若P在线段![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
2022-03-22更新
|
1216次组卷
|
3卷引用:湖南省益阳市2022届高三下学期3月调研考试数学试题