Ok, if I know that and and that . (o is origin) How do I prove that ? Any hints would be extremely helpful here. Thanks in advance.
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Originally Posted by FreeT Ok, if I know that and and that . (o is origin) How do I prove that ? Any hints would be extremely helpful here. Thanks in advance. show that the dot product of vector c and vector d = 0
Thanks, I did and said that and that It worked down to and now I need to prove this equal to zero. Sorry to ask, but can anyone help?
You are making it far too hard. All we need do is:
Thanks so much. (Vectors has never been my strong point )
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