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2-84.
  1. Write a Riemann sum for a general function f(x) to estimate A(f, 2 ≤ x ≤ 5) using n left endpoint rectangles of equal width if: Homework Help ✎

    1. n = 3 rectangles

    2. n = 9 rectangles

    3. n = 300 rectangles

General form of left-endpoint Riemann Sum:

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