Evaluate the integral from 0 to 1 of (4x-3x^3)dx by using Riemann sums with equal width subinterval division of [0, 1], RIGHT end-points and limits.

Answer 1

Here is a Desmos graph where n = 29. Look at rows 12 and 13 to compare the approx area with the actual area. Use the slider on n to increase the number of rectangles to see approximation getting closer and closer to the actual value.

desmos.com/calculator/id3bakc7wr