### Home > CALC > Chapter 2 > Lesson 2.3.1 > Problem 2-109

2-109.

The sigma notation below represents Riemann sums that find

*A*(*f*,*a*≤*x*≤*b*) for*n*rectangles of equal width. Determine*a*,*b*, and*n*. Homework Help ✎

General form of left-endpoint Riemann Sum:

*n* represents number of rectangles*a* represents starting value on the *x*-axis