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If the function f(x)=ax^(3)+bx^(2)+11x-6...

If the function `f(x)=ax^(3)+bx^(2)+11x-6 ` satisfies condition of Rolle's theorem in [1, 3] for` x=2+(1)/(sqrt(3))` then value of a and b are respectively
(A) 1, -6
(B) 2, -4
(C) 1, 6
(D) None of these.

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