AP Calculus BC Review April 11th

Today I decided to review Trapezoidal Approximations of Area under a curve. I saw a khan academy video to familiarize myself with the topic (https://www.khanacademy.org/math/integral-calculus/indefinite-definite-integrals/riemann-sums/v/trapezoidal-approximation-of-area-under-curve) and then practiced a few problems on my own. This rule is used to calculate the definite integral. You approximate the region under the function f(x) and calculate the area as a trapezoid. The formula is this:



I find that these problems are quite easy and repetitive as long as you follow the fornula.