do 2.13 Exercise 2.12. Leta) 4 =4 2-2-13 -511 2 3 4and let U be one of the matrices shown below. Compute UA.d) ઞ ==0 1 0 00000000000000000001000000000A =0100100000100001b) U21e) U:3-1 1100000100100000100010000000000000000000000000 10Exercise 2.13. Do the same exercise with the following matrices Ua) U =b) U =c) U =c) U=1000010000100501f) U =0 0 0 00000010000000000000000010000and A as above:d) U =1 0000 1 0 00-2 100 0 0 1

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Exercise 2.12. Let 2 3 1 4 -1 1 3 1 2 3 4 and let U be one of the matrices shown below. Compute UA. a) U d) U= 0 1 0 0 0000 0000 0000 a) U = 0000 0010 0000 0000, A= 0100 1000 0010 0001 || b) / e) U= -1 1 1000 0010 0100 0001 2 -2 -5 0 0 0 0 1000 0000 0000, 0000 0000 0000 0 0 1 0, Exercise 2.13. Do the same exercise with the following matrices U and A as above: b) U 1000 0 1 00 0-2 10 0001 c) U = c) U 1000 0100 0010 0501 = 0 0 f) U = 0 0 0 0 000 1 00 000, d) U= 0000 0000 0001 0000,