Question: 1 5 A = B = 1 -3 u = 3 19 - 1 7. Calculate: (a) A + BT, (b) AB, and (c) (AB)-1.

1 5 A = B = 1 -3 u = 3 19 - 1 7. Calculate: (a) A + BT, (b) AB, and (c) (AB)-1. 8. Solve (AB) x = u for x. 9. Show that AB # BA. C11 C12 di1 12 V1 10. Let C = D = and v = Show that (CD ) v = C(Dv) by C21 C22 d21 d22 U2 calculating A = CD, w = Dv, Av, and Cw

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