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If vec a= hat i-2 hat j+3 hat k , and ...

If ` vec a= hat i-2 hat j+3 hat k ,` and ` vec b=2 hat i+3 hat j-5 hat k` , then find ` vec axx vec b` . Verify that ` vec a` and ` vec axx vec b` are perpendicular to each other.

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