题文
已知非零向量![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/73f855f93e2c9b120af9ff308dc6c838.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
、
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/d87b2430025599b8c354123978be1bf3.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
满足|
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/cc230fa3f6bed3eed001bdbc9b90001d.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
+
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/c41212c6a565c8a85efe9a6229df99a1.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
|=|
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/984662a1e0f1824d211d4e208d387175.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
﹣
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/57bb40d8b838fd477b1bedcea99fe023.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
|=
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/955cb5a4646bf96f7629358f645902e0.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
|
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/50bfb67b1c1943b0d537f26a0eecfc03.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
|，则
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/8e36ba2e865dbe4abe90ba72fa48345f.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
+
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/d660a5bcfa3fcb066a1aa0550e8e3b1b.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
与
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/d331b54adb79e823e6918610f3a856dc.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
﹣
![已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °](https://www.mshxw.com/file/tupian/20210916/af69661017fbdc349c39c4afb8cbf9ff.png "已知非零向量、满足|+|=|﹣|=||，则+与﹣的夹角为[ ]A.30°B.60 °C.120 °D.150 °")
的夹角为[ ]A.30°
B.60 °
C.120 °
D.150 ° 题型：未知 难度：其他题型
答案
B解析
该题暂无解析
考点
据考高分专家说，试题“已知非零向量、满足|+|=|.....”主要考查你对 [用数量积表示两个向量的夹角 ]考点的理解。、
满足|
+
|=|
﹣
|=
|
|，则
+
与
﹣
的夹角为[ ]A.30°
B.60 °
C.120 °
D.150 ° 题型：未知 难度：其他题型
题文
已知非零向量答案
B解析
该题暂无解析
考点
据考高分专家说，试题“已知非零向量、满足|+|=|.....”主要考查你对 [用数量积表示两个向量的夹角 ]考点的理解。上一篇 s，t是非零实数，是单位向量，当时，的夹角是[ ]A． B． C． D．
下一篇 已知点A，B和抛物线C：y2=4x，O为坐标原点，过点A的动直线l交抛物线C于M、P，直线MB交抛物线C于另一点Q，如图证明
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