设
为向量.则
是
的
![](https://img.xkw.com/dksih/QBM/2014/2/19/1571511750131712/1571511755440128/STEM/6114cf93bc9c49f79056dee606cfeca0.png)
![](https://img.xkw.com/dksih/QBM/2014/2/19/1571511750131712/1571511755440128/STEM/c8be715d1ceb47f48f83256fdde233ad.png)
![](https://img.xkw.com/dksih/QBM/2014/2/19/1571511750131712/1571511755440128/STEM/717bbd1525b44ff1a5075132c3eb1ccb.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也必要条件 |
12-13高三·陕西宝鸡·阶段练习 查看更多[2]
更新时间:2016-12-02 17:11:03
|
相似题推荐
单选题
|
较易
(0.85)
名校
【推荐1】已知条件
:直线
与直线
垂直,条件
:
,则
是
的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6724f18595155fee10d0b3d4d227888.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377f53f20db334886acfa0082b84a51b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
A.充要条件 | B.充分不必要条件 |
C.必要不充分条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
【推荐2】已知
,则“
”是“
”成立的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68a83b4093280ea8750677f6828bf47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9781de98a03c354e46cabf04aa3deda8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e8ee964f412e86d8bd19136eeedb7c2.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐1】“
”是“向量
、
共线”的( )条件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b2d14ad4de1d4a9369ac5ad3746103.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
A.充分不必要 | B.必要不充分 |
C.充要 | D.既不充分也不必要 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐2】已知向量
,且
,则下列一定共线的三点是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b172cf8d898883d82e973f28c3c3a3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f20b0bfafb49b209ed86bc7fc9e8be0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐1】已知向量
,
的夹角为60°,且
,
,则
( )
![](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/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a035c8861e9fa9369d20d6b531d88dc.png)
A.12 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐2】在
中,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd01f8d99637871de828cb6b87ec7b33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a782849c00b269b058781699e2d76de7.png)
A.![]() | B.16 | C.32 | D.![]() |
您最近一年使用:0次