125/1000, integral of x*sec^2(x), calculus 2 integration by parts

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126/1000, how to evaluate a limit with just algebra

114/1000, 3 rectangles under y=1/x from 1 to 2

91/1000, they love asking this question on calculus 1 exams!

117/1000, series of cos(1/n)

120/1000, integral of 1/(1-x^2), hyperbolic tangent vs partial fraction

102/1000, how to write an integral as a limit of a Riemann sum

123/1000, total derivative of z=f^g, calculus 3

101/1000, how to convert a limit of a Riemann sum to an integral

113/1000, finding the arc length of y=sqrt(x), two ways

The Von Neumann Construction of the Natural Numbers

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93/1000, why is the derivative 2^x equal to 2^x*ln(2)

121/1000, derivative of sin^-1(x), implicit differentiation

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

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

82/1000, know the chain rule for derivatives!