2 12 Estimate the minimum number of subintervals to approximate the value of 2 ds with an error of magnitude less than 1 S 10 using a. the error estimate formula for the Trapezoidal Rule. b. the error estimate formula for Simpson's Rule. a. The minimum number of subintervals needed to approximate the integrals with an error of magnitude less than 10- by the trapezoidal rule is (Type a whole number.) b. The minimum number of subintervals needed to approximate the integrals with an error of magnitude less than 10 by Simpson's rule is (Type a whole number.)