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## Homework Statement

Let u=(-1,-2,-2,2) and v=(-1,-2,-2,-1) and let

*V*=span{u,v}. (Just to be clear, u and v are column vectors)

Find the standard matrix that projects points (orthogonally) onto

*V*.

## Homework Equations

## The Attempt at a Solution

I started by making a matrix A=[u,v], which represents

*V*. From there, however, I don't know where to go.