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If matrix A =[(3,2,1)(6x^2, x^4)(1,a,a^4)], then d^2/dx^2(|A(adjA)|^1/3) at x = a is

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If matrix A =[(3,2,1)(6x2, x4)(1,a,a4)], then d2/dx2(|A(adjA)|1/3) at x = a is

(A) 1 (B) a (C) a 2 (D) none of these

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Correct option (D) none of these

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