题文
设向量
,

,

满足

+

+

=0,

⊥

,|

|=1,|

|=2,则|

|=( ) 题型:未知 难度:其他题型
答案

解析
该题暂无解析
考点
据考高分专家说,试题“设向量,,满足++=0,⊥,||=.....”主要考查你对 [向量模的计算 ]考点的理解。
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