4.设非零向量..满足==..则= ( ) A.150° B.120° C.60° D.30° 查看更多

 

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设非零向量满足,则向量的夹角为( )
A.30°
B.60°
C.120°
D.150°

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设非零向量满足,则(  )

A.150°    B.120°    C.60°     D.30°

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设非零向量满足,则

A.150°               B.120°              C.60°                D.30°

 

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设非零向量满足,则

A.150°B.120°C.60°D.30°

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设非零向量满足,则=( )
A.150°
B.120°
C.60°
D.30°

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