设向量abc满足a+b+c=0且a=3-标签分类-2025-12-13 05:54
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设向量abc满足a+b+c=0,则a×b,
设向量abc满足a+b+c=0,且a的模3b的模4,c的模5,
设向量abc满足a=b=1,ab=-1/2,
设向量ab满足a-b=a+b,则必有,
设向量a,b满足|a|=|b|=1,
向量abc满足a加b加c等于0,
设向量a,b满足|a+b|=根号10,
已知向量a.b.c满足a+b+c=0,
设三向量abc满足关系a+b+c=0,axb,
设三向量abc满足关系式ab=ac