here is a geometric proof, similar to the one in my textbook (copied from Aryabhata, from http://math.stackexchange.com/questions/15294/why-is-the-area-under-a-curve-the-integral) :(adsbygoogle = window.adsbygoogle || []).push({});

Is this saying: that the A' equals the function. Which is implying, that the integration of A equals F (where F is the integral of f)?

thanks

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# Why is the area under a curve the integral?

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