(a) { -6x + 4y = 3, -4x - 3y = -2 (b) { -6x + 4y = -1, -4x - 3y = 3 (i) Find the inverse of the (common) coefficient matrix of the two systems. A^-1 = [ -1/34 12/17 ] (ii) Find the solutions to the two systems by using the inverse, i.e. by evaluating A^-1 B where B represents the right hand side (i.e. B = [ 3, -2 ] for system (a) and B = [ -1, 3 ] for system (b)). Solution to system (a): x = , y = Solution to system (b): x = , y =
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