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What can you conclude about four non ...

What can you conclude about four non zero vectors ` vec a ,\ vec b ,\ vec c\ a n d\ vec d` given that `|( vec axx vec b)dot vec c|+|( vec bxx vec c)dot vec d|=0` .

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RD SHARMA ENGLISH-SCALAR TRIPLE PRODUCT -All Questions
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  3. What can you conclude about four non zero vectors vec a ,\ vec b ...

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