Question: Please do not copy from someone else's answer. Problem 3. (20 points total) For all A E Mmxn (R) show that (a) (5 points) (AT)T

Please do not copy from someone else's answer.

Problem 3. (20 points total) For all A E Mmxn (R) show that (a) (5 points) (AT)T = A; (b) (5 points) ( At ) I = (AT)t; (c) (5 points) AT = AT AAT = At AAT; (d) (5 points) At = AT(AAT)+ = (AT A)AT

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