1 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f32d63e3094ee92bbef188b9057489.png)
是平面内的两个单位向量,且
,则
的值可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f32d63e3094ee92bbef188b9057489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64d4df4e6619a5136bc984184bb88329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d577aa8ef47b419e5bb49542d06338.png)
A.![]() | B.![]() | C.![]() | D.1 |
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2卷引用:浙江省七彩阳光联盟2021-2022学年高一下学期期中联考数学试题
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2 . 已知
是平面内两两不相等的向量,满足
,且
(其中
),则实数k的值可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a80af10934f4050705db3cc40bdb62a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2fb745e7f1ef9c33654171c3d03cff6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023dd060f68ff67af103c39cee871371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19922bde547b27a498187750c1491751.png)
A.2 | B.4 | C.6 | D.8 |
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3卷引用:江苏省苏州市张家港市2021-2022学年高三上学期12月阶段性测试数学试题
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解题方法
3 . 平面向量
,满足
,
且
,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3aab05482046ebd5b2487850d05273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f195fb0679639c7d5ab7445b84866b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b36d2d2ee942b083815c18784de662ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8afdcd030c7fbdd2ea3244a4964c2ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac30d5318b74e8eba8cb8063427bf75a.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.若向量![]() ![]() ![]() ![]() |
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