Some of my professors claim it’s the infinitismal section of the graph, and some say it’s just notation. Then my professor said the differential of a function and the derivative of a function are two different things, whatever that means. I’m just all very confused. Plz help.
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It’s the opposite of the S sign in the beginning of the integral.
It helps to think of integrals as the sum of an infinite number of infinitely small areas.
The S sign means sum of infinite terms. The dx makes the area tiny. And that’s how integrals are meant to work.
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