EXAMPLES: 13:42 22:18 27:11 28:10 29:40
I explain the process of finding the lower and upper sums using Reimann Sums. When a function is increasing, you use the left endpoints of rectangles to find the lower sum (under estimate the area) and the right endpoints of rectangles to find the upper sum (over estimate the area). If a function is decreasing, the left end points will allow you to find the upper sums. These sums estimate the area between a function and the x axis on a closed interval in my examples. Find free review test, useful notes and more at http://www.mathplane.com
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