PS1-2 - Problem Set 1: Problem 2. Problem: Find M N if M =...

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Problem Set 1: Problem 2. Problem: Find M × N if M =2 i 2 j k and N = i + j + k . Solution: For the given vectors, we have M × N = e e e e e e e ijk 2 2 1 111 e e e e e e e =( 2+1) i (2 + 1) j +(2+2) k where the second equality follows from expanding in cofactors. Doing the arithmetic, we find
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