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If A=[[0, 1,2],[1,2,3],[3,a,1]]and A^(-1...

If `A=[[0, 1,2],[1,2,3],[3,a,1]]and A^(-1)[[1//2,-1//2,1//2],[-4,3,b],[5//2,-3//2,1//2]]` then

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The correct Answer is:
a=1,c=-1
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