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设向量a=(-2,4,4),b=(0,6,3),则a与b的夹角为().
分类: 数学2 (军队文职)
发布时间: 2023-11-03 09:28
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设向量a=(-2,4,4),b=(0,6,3),则a与b的夹角为().
A.
B.
C.
D.
正确答案是C
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