1.

If f(x) = e4log x, then what is the derivative of f(x) ?1. e4log x2. \(\rm \frac {e^{4log x}}{x}\)3. 4x34. None of these

Answer» Correct Answer - Option 3 : 4x3

Calculations:

Given, f(x) = e4log x

f(x) = \(\rm e^{\log {x^4}}\)

f(x) = x4               (∵ elog x = x)

Taking derivative w. r. to x on both side, we get 

f'(x) = 4x3



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