两个向量互相垂直满足向量积为0还是数量积为0?如果是数量积为零 是至少一个为0 还是由于cos90`=0
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![两个向量互相垂直满足向量积为0还是数量积为0?如果是数量积为零 是至少一个为0 还是由于cos90`=0](/uploads/image/z/5163038-62-8.jpg?t=%E4%B8%A4%E4%B8%AA%E5%90%91%E9%87%8F%E4%BA%92%E7%9B%B8%E5%9E%82%E7%9B%B4%E6%BB%A1%E8%B6%B3%E5%90%91%E9%87%8F%E7%A7%AF%E4%B8%BA0%E8%BF%98%E6%98%AF%E6%95%B0%E9%87%8F%E7%A7%AF%E4%B8%BA0%3F%E5%A6%82%E6%9E%9C%E6%98%AF%E6%95%B0%E9%87%8F%E7%A7%AF%E4%B8%BA%E9%9B%B6+%E6%98%AF%E8%87%B3%E5%B0%91%E4%B8%80%E4%B8%AA%E4%B8%BA0+%E8%BF%98%E6%98%AF%E7%94%B1%E4%BA%8Ecos90%60%3D0)
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