B has full row rank. Show that AB(AB)+ = AA+ Hint: (AB)(AB)+ = [(AB)(AB)+1*; (AB)(AB)+ =...

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Question

B has full row rank. Show that AB(AB)+ = AA+ Hint: (AB)(AB)+ = [(AB)(AB)+1*; (AB)(AB)+ = AA+(AB)(AB)+; A = ABBA

math Statistics-And-Probability

Answer 1

Answer #1

Here we have to show that AB (AB) *= AAT . Since then A = AAAT and BB t = I AB(AB) +(AB)*(AB) - (AB)+&A = (AB)+ B A

Answer 2

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