题文
已知向量![已知向量、满足，且，则=[ ]A．10B．20C．21D．30](https://www.mshxw.com/file/tupian/20210916/f2eefee5ef40b1cdfa9445836757f271.png "已知向量、满足，且，则=[ ]A．10B．20C．21D．30")
、
![已知向量、满足，且，则=[ ]A．10B．20C．21D．30](https://www.mshxw.com/file/tupian/20210916/b4d580f09f595e330c3a17850404c2d0.png "已知向量、满足，且，则=[ ]A．10B．20C．21D．30")
满足
![已知向量、满足，且，则=[ ]A．10B．20C．21D．30](https://www.mshxw.com/file/tupian/20210916/887f8cfdf230776529a4a31f270be1ea.png "已知向量、满足，且，则=[ ]A．10B．20C．21D．30")
，且
![已知向量、满足，且，则=[ ]A．10B．20C．21D．30](https://www.mshxw.com/file/tupian/20210916/b2acebc862867d692b95f47a327e6aca.png "已知向量、满足，且，则=[ ]A．10B．20C．21D．30")
，则
![已知向量、满足，且，则=[ ]A．10B．20C．21D．30](https://www.mshxw.com/file/tupian/20210916/c66da4eccade9359c74083e28f99d3b7.png "已知向量、满足，且，则=[ ]A．10B．20C．21D．30")
= [ ]A．10
B．20
C．21
D．30 题型：未知 难度：其他题型
答案
A解析
该题暂无解析
考点
据考高分专家说，试题“已知向量、满足，且，则=[ .....”主要考查你对 [向量模的计算 ]考点的理解。、
满足
，且
，则
= [ ]A．10
B．20
C．21
D．30 题型：未知 难度：其他题型
![已知向量、满足，且，则=[ ]A．10B．20C．21D．30](http://www.mshxw.com/aiimages/25/169351.png "已知向量、满足，且，则=[ ]A．10B．20C．21D．30")
题文
已知向量答案
A解析
该题暂无解析
考点
据考高分专家说，试题“已知向量、满足，且，则=[ .....”主要考查你对 [向量模的计算 ]考点的理解。上一篇 A few days ago I got a call from my old college friend whom I haven’t seen for a
下一篇 A new study suggests that the roundtheclock availability that cell pho
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