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平行向量一定是共线向量吗

更新时间: 2020-10-31 00:00:00     

平行向量一定是共线向量,方向相同或相反的非零向量叫平行行量,因为任一组平行向量都可移到同一直线上,所以平行向量又叫做共线向量,所以平行向量一定是共线向量。共线向量一定是平行向量,两者概念是相同的。所以只要是平行的向量,必然可以通过平移,使之在一条直线上,即一定是共线向量。

关键词: 平行 向量 一定

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