



 
Hi Tarun, First differentiate the two terms separately. When you have an expression of the form \[y = f(x)^{g(x)}\] where $g(x)$ is not a constant you can take the natural logarithm of both sides to obtain \[\ln(y) = \ln\left(f(x)^{g(x)}\right) = g(x) \ln\left(f(x)\right).\] Now differentiate both sides. The left side becomes $\large \frac{y^{\prime}}{y}$ and hence $y^{\prime}$ is $y$ times the derivative of the right side. Penny  


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