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

Let u=(-1,-2,-2,2) and v=(-1,-2,-2,-1) and letV=span{u,v}. (Just to be clear, u and v are column vectors)

Find the standard matrix that projects points (orthogonally) ontoV.

2. Relevant equations

3. The attempt at a solution

I started by making a matrix A=[u,v], which representsV. From there, however, I don't know where to go.

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# Homework Help: Linear Algebra/Standard matrix of a projection onto a plane

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