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Home > CALC > Chapter 3 > Lesson 3.3.2 > Problem 3-106

  1. Examine the Riemann sum below for the area under f(x). Homework Help ✎

    1. How many rectangles were used?

    2. If the area being approximated is A(f, axb), what are a and b?

Notice that the index starts at 0 and ends at 11.

a = 3 is easy to spot in a Riemann sum. Now find the end-value, b.

General form of a left-endpoint Riemann sum:

You already computed how many rectangles there are part (a).