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Let the vectors veca,vecbvecc be given a...

Let the vectors `veca,vecbvecc` be given as `a_(1)hati+a_(2)hatj+a_(3)hatk,b_(1)hati+b_(2)hatj+b_(3)hatkc_(1)hati+c_(2)hatj+c_(3)hatk`. Then show that `vecaxx(vecb+vecc)=vecaxxvecb+vecaxxvecc`

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