已知向量
,若
与
反向共线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a603ed9ba18f455b83eeff86ee9bdf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45ba716f03748c19b7ce2f99af536ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.![]() | C.![]() | D.2 |
更新时间:2022-12-15 10:55:51
|
【知识点】 由向量共线(平行)求参数解读
相似题推荐
单选题
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较易
(0.85)
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解题方法
【推荐1】已知向量
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c425f606908f58ba5c52724278923b32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bff26d255e9d4c1be784c9b69049185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/695797cbadfe77a292710550f4482427.png)
A.![]() | B.5 | C.1 | D.![]() |
您最近一年使用:0次
单选题
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较易
(0.85)
名校
解题方法
【推荐2】设
,
是两个不共线的向量,若向量
与向量
共线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37f2ffe43749a5dc542bf574c6722991.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b51022b034f91b2ac7d7f01e793c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.0 | B.![]() | C.1 | D.2 |
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【推荐3】记数列
的前n项和为
,已知向量
,
,若
,且
,则对于任意的
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/791e9c00c9ec9b69064a57a31f6b1007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fee7a3e6bfc638103da1251ca6f93651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32b6dc307d12bbd6b850a67b0599620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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