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How to tell if riemann sum is overestimate or underestimate

User Gissell
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Answer: See below

Explanation:

Using a graphing approach:

If the graph is increasing, then the left-sum is an underestimate of the actual value and the right-sum is an overestimate

If the curve is decreasing then the right-sums are underestimates and the left-sums are overestimates

User Twolffpiggott
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