96/1000, a MUST-KNOW calculus 1 problem! Sketching the graph based on its derivatives

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

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

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97/1000, how to evaluate the limit of x-sqrt(x) as x goes to infinity

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

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