Prove that the pseudoinverse satisfies the following identities: (a) (A+)+ = A (b) A A+A = A
Question:
(a) (A+)+ = A
(b) A A+A = A
(c) A+A A+ = A+
(d) (AA+)T = AA+
(e) (A+A)T = A+A
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We repeatedly use the fact that the columns of P Q are orthonormal and so P T P I Q T Q I a Since ...View the full answer
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