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[" If "A=[[x,2,-1],[-1,1,2],[2,-1,1]];(x...

[" If "A=[[x,2,-1],[-1,1,2],[2,-1,1]];(x!=(-11)/(3))],[" and let det "(adj(ad)A))=(14)^(4)." Then value of "x" is "]

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