### Home > PC3 > Chapter 13 > Lesson 13.2.3 > Problem13-90

13-90.

Let $f\left(x\right) = x^{3} + 1$. Approximate the area under the curve on the interval $−2\le x\le3$ using $10$ trapezoids.

Use a calculator to approximate the area using both left and right endpoint rectangles.
Then average those approximations.