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If veca = 3hati+hatj-2hatk, vecb = 2hati...

If `veca = 3hati+hatj-2hatk, vecb = 2hati-3hatj+4hatk` then verify that `vecaxxvecb` is perpendicular to both `veca` and `vecb`.

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If veca=3hati+hatj+2hatk , vecb=2hatj-3hatj+4hatk then verify that vecaxxvecb is perpendicular to both veca and vecb .

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USHA PUBLICATION-PREVIOUS YEAR QUESTION 2020-PREVIOUS YEAR QUESTION
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