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Math Help - Help on epsilon delta proof of integral

  1. #1
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    Help on epsilon delta proof of integral

    Help on epsilon delta proof of integral-_8z_jc4gbyjf-g-u-s_qm.jpg

    please help me on this question.
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  2. #2
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    Re: Help on epsilon delta proof of integral

    Have you at least tried drawing a picture for this situation?
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  3. #3
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    Re: Help on epsilon delta proof of integral

    Hi,
    Hints:
    First prove the result in case f and g differ at only one point. Then an easy induction finishes it.
    Next prove that the function h which is non-zero at only one point of [a,b] is Riemann integrable, with integral 0.
    Finally, set h=g-f where g and f differ at only one point.

    The only part that requires "epsilon delta" is the 2nd line.
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