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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.