Question: 2b. [15p.] A vector b in R' and a subspace W of R' are given. Find the orthogonal projection matrix Pw and use it to

2b. [15p.] A vector b in R' and a subspace W of R' are given. Find the orthogonal projection matrix Pw and use it to obtain the unique vectors bw and bwi such that b = bw + bwi. Find the distance from b to W. b = W is the solution set of 2x1 + X2 - 2X3 = 0

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