Here is the answer of the given mathematical problem above: In order to differentiate f(x)= square root of x times sin x, you do this. Use the product rule so that f′(x)=f(x)g′(x)+f′(x)g(x) when f(x)=x√ and<span>g(x)=sin(x) </span>Next, solve for the derivative of sqrt(x) and sinx first and then plug into the equation for the product rule. The result would be <span>the derivative of sqrt(x) is 1/2x^-1/2 and </span><span>derivative of sinx is cosx.</span>