Question: I need help with this Use the least squares method to find the orthogonal projection of b = [-2 1 2]' onto the column space

I need help with this

Use the least squares method to find the orthogonal projection of b = [-2 1 2]' onto the column space of the matrix A. 1 1 A = 0 1 1 2 1/2 projs b = 1/2 1 X

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