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向量AB加向量BC等于多少
更新时间: 2020-07-04 00:00:00  

向量之间的计算用平行四边形法则进行计算。

即以ABC为三个顶点作平行四边形ABCD,向量AC即为所求。

向量AB加上向量BC相当于向量AC。

关键词: 向量 ab bc 等于 多少

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