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The second order derivative of which of the following functions is 5x5^x ?

Solution

✅ Correct Option: 4

If f′′(x)=5xf''(x) = 5^x, then integrating once gives f′(x)=5xlog⁡e5f'(x) = \frac{5^x}{\log_e 5}, and integrating again gives f(x)=5x(log⁡e5)2f(x) = \frac{5^x}{(\log_e 5)^2} (ignoring constants).

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