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Math Help - integration

  1. #1
    sss
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    integration

    Estimate the area under the graph of from to using approximating rectangles and left endpoints
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  2. #2
    Behold, the power of SARDINES!
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    Quote Originally Posted by sss View Post
    Estimate the area under the graph of from to using approximating rectangles and left endpoints
    \Delta x =\frac{4-1}{3}=1

    so our sample points are 1,2,3

    so the area is

    \Delta x(f(1)+f(2)+f(3))=1(5+12+21)=38
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