vec a , vec b and vec c are the positio...

` vec a , vec b` and ` vec c` are the position vectors of points `A ,B` and `C` respectively, prove that : ` vec a× vec b+ vec b× vec c+ vec c× vec a` is vector perpendicular to the plane of triangle `A B Cdot`

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RD SHARMA ENGLISH-SCALAR TRIPLE PRODUCT -All Questions

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