Hi everybody. I'm currently working on a problem that asks me to approximate the area with rectangles.

If the integral from 0 to 6 of (x² - 2x + 2)dx is approximated by three inscribed rectangles of equal width on the x-axis, then the approximation is

Since it says "inscribed", then I guess I should use lower Riemann sums?

I got 28 at the end. Am I correct?

Thanks a lot.