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

2-109.

The sigma notation expressions below represents Riemann sums that calculate the area under the curve of a function, , for

*using*

*rectangles of equal width. For each summation, determine the values of*

*and*

*.*

General form of left-endpoint Riemann Sum:

represents number of rectangles.

*represents starting value on the*

*-axis.*