Series estimation with integrals | Series | AP Calculus BC | Khan Academy

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Suppose we want to find the sum of a convergent series, and can't do it directly. We can take a partial sum, but how do we know how far we are from the actual sum? We can use improper integrals for that!

AP Calculus BC on Khan Academy: Learn AP Calculus BC - everything from AP Calculus AB plus a few extra goodies, such as Taylor series, to prepare you for the AP Test

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This is exactly what I need!!!
Thank you very much Khan Academy.

DragonHunter