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Unformatted text preview: a) Prove thm 5.1.1; that for nonzero vectors x , y R 2 , x T y =  x   y  cos( ). b) State and prove the normal equations, used to solve least squares problems. You can start from a picture and can assume that bp R ( A ) . Answers: 1) TFTTT 2) A = 1 0 0 0 1 0 0 0 2 3) Both are in the book. 1...
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 Spring '09
 JULIANEDWARDS

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