Solve the question by using Excel

Show the Excel Equation and sheets. I post the question on chegg i got the Excel sheet, but with out the equation

0.5 2) Use EXCEL to evaluate the approximate value of the above integral using trapezoidal rule with:n-2 4, 8 and 16. The true solution is: 0.478306. Compute the percentage error, where E l(analytical - numerical) 100 /analytical solution).Demonstrate convergence, which shows that the error decreases when you used more trapezoids. 3) Use EXCEL to compute value of the above (problem 2) integral using the Simpson's rule with n- 2, 4,8 and 16: compute the error and demonstrate convergence )Compare the error values estimated using n-2,4,8, 16 in problems 2 &3 and comment on the results