JEE MATHEMATICS MCQ: DIFFERENTIATION

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Application +4 | -1

Derivative of the function

f\left( x \right) = {\log _5}({\log _7}x),x > 7

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Correct option: A

\frac{1}{{x(\log 5)(\log 7)({{\log }_7}x)}}

Option A is correct because it is the result of applying the chain rule and the change of base formula for logarithms to find the derivative.

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