题目内容
设向量满足,则
A.1 B.2 C.4 D.5
D
设向量满足,则=( )
A.2 B. C.4 D.
设向量满足,则的值是 ( )
A.2 B.4 C.8 D.16
设向量满足,则的最大值等于
(A)2 (B) (c) (D)1