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Prove that for any n 1 vectors v and w. If a = v.v and P = I 1v.v, (a) PT = P (b)

Prove that for any n 1 vectors v and w. If a = v.v and P = I 1v.v, (a) PT = P (b) p P (c) P.v = 0, and (d) If v.w = = 0, then P.w = w. =

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