Chapter 9.4, Problem 42E

To determine

To graph: The second derivative of the function in the window $\left[0,1\right]$ by $\left[-10,10\right]$ and using graph find a bound on the error of the estimate, where the definite integral ${\displaystyle \underset{0}{\overset{1}{\int }}\frac{4}{1+x^2}dx}$ has value $\pi$ and trapezoidal rule with $n=15$ is used to estimate $\pi$.