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

Show that vector orth of b onto a=b-proj of b onto a is orthogonal to a.

I totally don't know where to start :(

and I don't know hat orth of b onto a means...

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# Homework Help: Orth of b onto a

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