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Exercises

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Exercise 5

  • Some values of the decreasing function g are given in the table below:

  • Use a left-hand sum with 3 sub-intervals to estimate the area between the graph of g and the x-axis on the interval [-1,2].
  • Use a left-hand sum with 2 sub-intervals to estimate the area between the graph of g and the x-axis on the interval [-1,2].
  • Are your answers in (a) and (b) over- or under-estimates for the actual area between the graph of g and the x-axis on the interval [-1,2]?
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