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The basic idea of Integral calculus is finding the area under a curve. To find it exactly, we can divide the area into infinite rectangles of infinitely small width and sum their areas—calculus is …

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Start practicing—and saving your progress—now: https://www.khanacademy.org/math/ap-calculus-ab/ab-integration-... Courses on Khan Academy are always 100% free.

AP Calculus BC covers Calculus 1 and 2 and is more rigorous. Differential and Integral Calculus are two different types of calculus. Multivariable Calculus, Differential Equations, and Linear …

Finding the slope of a tangent line to a curve (the derivative). Introduction to Calculus.Watch the next lesson: https://www.khanacademy.org/math/differentia...

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Differential calculus on Khan Academy: Limit introduction, squeeze theorem, and epsilon-delta definition of limits. About Khan Academy: Khan Academy is a nonprofit with a mission to …