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and, Hence, X-, EXERCISE 1B, 2., 2-3 5, verify that (A+B) (B+ A, 1. If A-, and B-, -1, 0 3, 21, -1 -3, 2 and, -2 3, 3 4, 2. If A=-2, -1, 0, B=, 4, 6., verify that (A + B) +C = A + (B+C)., 0 4, 5 -3 2, 3. If A=, 3 1, 2, and B =, -2, find (2A-B)., 12-3, 1 3, ,B=, [-2 5, -2 5, 4. Let A=, and C=, Find:, 3 2, (i) A+2B, (ii) B– 4C, (iii) A-2B +3C, 5. Lat A-[ - nd c-, 1 -3 -1, 0 -2, 1, 2 -5 17, , B =, and C=, -4, 0 6, 5 -1, Compute 5A- 3B+ 4C., 5 10 -15, 6. If 5A = 2, 3, 4 find A., 1, -5], 7. Find matrices A and B, if, [-5-4 8, 2 0, 1 0, 2, A+B=5 4 -6 and A-B= 11, 8., 7 3, 4.