已知向量=(2,-2,3),向量=(x,1-y,4z),且平行四边形OACB的对角线的中点坐标为,则(x,y,z)=[]A.(-2,-4,-1)B.(-2,-4,1)C.(-2,4,-1)D.(2,-

题目简介

已知向量=(2,-2,3),向量=(x,1-y,4z),且平行四边形OACB的对角线的中点坐标为,则(x,y,z)=[]A.(-2,-4,-1)B.(-2,-4,1)C.(-2,4,-1)D.(2,-

题目详情

已知向量=(2,-2,3),向量=(x,1-y,4z),且平行四边形OACB的对角线的中点坐标为,则(x,y,z)=
[     ]
A. (-2,-4,-1)          
B. (-2,-4,1)
C.(-2,4,-1)                
D.(2,-4,-1)
题型:单选题难度:中档来源:同步题

答案

A

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