Limit of x! over x^x as x goes to infinity

Basic Integration

Limit of natural log @ infinity

A Vieta Problem

Find all real candidates for x

Researchers thought this was a bug (Borwein integrals)

Sum from 1 to infinity of 1/(k^2+1)

18 year old students just discovered a proof of Pythagoras that mathematicians said was impossible

An integral with a classic result

Solving a septic equation

The generalised Dirichlet integral: integral of (sinx)^n/x^n from zero to infinity

finally 0^0 approaches 0 (after 6 years!)

The Subtle Reason Taylor Series Work | Smooth vs. Analytic Functions

Integrate 1/(1+x^3)

Limit of x^x as x goes to 0+

f(x+1) = f(x+2) +1

What does the second derivative actually do in math and physics?

Number of digits of n!

Limit at infinity of factorial and exponential function

The SAT Question Everyone Got Wrong

Integrate x^-x dx