For what values of the parameter A, will the following equations fail to have unique solution: 3x - y + Az = 1, 2x +y+z= 2, X+2y-Az= -1. Select one: O a. -3.5 O b.4.5 OC.-4.5 O d. 2.5

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A: Given:

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A: X Y 62 120 62 140 63 130 65 150 66 142 67 130 68 135 68 175 70 149 72 168…