Estimate 10 13 cos(x2) dx using the Trapezoidal Rule and the Midpoint Rule, each with n = 4. (Round your answers to six decimal places.) (a) the Trapezoidal Rule (b) the Midpoint Rule From a graph of the integrand, decide whether your answers are underestimates or overestimates. OT4 is an underestimate OT4 is an overestimate OM4 is an underestimate OM is an overestimate What can you conclude about the true value of the integral? (Round your answers to six decimal places.) 1 < 13 cos(x2) dx