Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function.
Step 1 :Given the function
Step 2 :According to the Fundamental Theorem of Calculus Part I, the derivative of a function defined by an integral from a to x of f(t) dt is simply f(x).
Step 3 :Therefore, the derivative of the given function is simply the integrand evaluated at x, which is
Step 4 :