### Home > CALC > Chapter 2 > Lesson 2.2.2 > Problem 2-70

2-70.

Alter your sigma notation from problem 2-69 to estimate the area with

represents number of rectangles.

*a*represents starting value on the

*-axis.*

2-70.

Alter your sigma notation from problem 2-69 to estimate the area with

represents number of rectangles.