71/1000, limits from a graph

68/1000, midpoint rule approximation for the integral of sqrt(1+x^3) from 0 to 2

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86/1000, the small-angle approximation, sinθ≈θ

63/1000, limit of x^x as x goes to 0+, calculus 1

85/1000, why is the integral of 1/x = ln(x)+C?

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