(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Let x and y be to vectors

Verify whether |xy|<=|x|+|y| for all x,y

3. The attempt at a solution

My first problem with this question is that it does not tell us whether the operation xy is the same as x.y (dot product) or a cross product.

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# Vector operations

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