21.2 Evaluate the following integral: (1 ex ) dx (limits of integration 0 to 3) (a) analytically and then by (b) single application of the trapezoidal rule; (c) multiple-application trapezoidal rule, with n = 2 and 4; (d) single application of Simpsons 13 rule; (e) multipleapplication Simpsons 13 rule, with n = 4; (f) single application of Simpsons 38 rule; and (g) multiple-application Simpsons rule, with n = 5. For each of the numerical estimates (b) through (g), determine the percent relative