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If f(g(x)) = x and g(f(x)) = x then g(x) is the inverse of f(x) . (g'(x))f'(x) = 1 implies g'(f(x))=1/(f'(x)) If f(x) = x^3 +x^2 +log_ex and g is inverse of f then 6'g(6) is equal to

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Answer :A


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