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please help me on this question.

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- Jul 10th 2013, 07:38 PMamazingboxzHelp on epsilon delta proof of integral
Attachment 28776

please help me on this question. - Jul 10th 2013, 10:08 PMProve ItRe: Help on epsilon delta proof of integral
Have you at least tried drawing a picture for this situation?

- Jul 11th 2013, 09:56 AMjohngRe: 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.