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38. Let A = _2 3 3 -4 and B = -1 2 -21 a. Find A and show that (AT) = A. b. Show

38. Let A = _2 3 3 -4 and B = -1 2 -21 a. Find A and show that (AT) = A. b. Show that (A + B) = AT + BT. c. Show that (AB ) = BTAT

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