2. Let12 24 5)-1 -23The value of x for which A is not invertible is6(B – InterviewSolution

1.	2. Let12 24 5)-1 -23The value of x for which A is not invertible is6(B) 12(C) 3
Answer» A is not invertible so mode of A is 0. 12(6×3-(-2)(2)) -24(3x-(2)(-1))+5(-2x-(6)(-1)) = 0 12(18+4)-24(3x+2)+5(-2x+6) = 0 264 - 72x - 48 - 10x + 30 = 0 82x = 246 x = 3

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