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

82/1000, know the chain rule for derivatives!

88/1000, 1-1/2+1/3-1/4+...=? (alternating harmonic series)

94/1000, finding dy/dx for y^y=x

83/1000, don't use the quotient rule

92/1000, finding the critical numbers of f(x)=x^2*e^(-0.5x)

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

61/1000, integral of sqrt(x) from 1 to 9

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

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

103/1000, a calculus problem without using calculus

Derivative Rules Cheat Sheet: All Rules in Under a Minute

How to Prepare for Calculus: Essential Steps Before College

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