Differentiation Question 92

Question: If $ y={3^{x^{2}}} $ , then $ \frac{dy}{dx} $ is equal to

Options:

A) $ (x^{2}){3^{x^{2}-1}} $

B) $ 3x^{2}.2x $

C) $ {3^{x^{2}}}.2x.\log 3 $

D) $ (x^{2}-1).3 $

Show Answer

Answer:

Correct Answer: C

Solution:

Given $ y={3^{x^{2}}} $

$ \because \frac{d}{dx}(a^{x})=a^{x}{\log _{e}}a $

$ \therefore \frac{dy}{dx}={3^{x^{2}}}{\log _{e}}3\frac{d}{dx}(x^{2}) $

Therefore $ \frac{dy}{dx}={3^{x^{2}}}.2x.{\log _{e}}3 $ .