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[M2] Let -1] 2 A = 2 1 -2 3 (a) Find A-1, (b) Use the inverse matrix above to solve the system -2x1 + 2x2 – x3 2, X1 + x2 + 2

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/ A- Lą -9 9. 3 a). All = detCM) = -2 (3+4) -2-3-43 -1 [ <2-2] - - 14 +2 +4. = (-8) A is non-singular modniu 80 A is invertib-201202 - 33 = 2. 2 + 2 + 2 = - | 2 -22 + 333-5 A: 2 -23 = (111) A: b | -२ २ - 2 -23 42 - 8 7 -45 --43 -40- 45 430 । -18J. 43я - Го го 1 -2 о. | о з 5 Гого Co4 Е, е / too I o o 1 Ка - Кат (-акі). „ (for kg 6 от K, 25 Қз . o to. - о o o 5 Кs -> Қаt 3

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