Exercise 1.5 Solve the linear systems of equations given below 2 x1 + X1 + 2 x2 X1 + а) X2 + 2 x3 = 1 1 X2 + X3 b) 2 x1 + X2 - X3 = 4 -2 x1 + X3 + X4 = -2 2 X4 = 4 2 X1 + 2 X2 — Хз + X4 = ||||

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Q: x1 + 2x2 + 3x3 = 6 2х1 - 3х2 + 2x3 = 14 3x1 +x2-x3 =-2

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A: We have to solve the given system of equations using Cramer's rule.