Top network posts

• 30 How to know whether Lagrange multipliers gives maximum or minimum?
• 26 Is there a unique polynomial function $f(x)$ of degree $\lt n$ such that $f(n) = a_n$ where $\{a_n\}$ is a sequence?
• 22 Why does gravity act at the center of mass?
• 17 How to evaluate $\int_0^1\int_0^1 \frac{1}{1-xy} \, dy \, dx$ to prove $\sum_{n=1}^{\infty} \frac{1}{n^2}=\frac{\pi^2}{6}$.
• 16 Prove the theorem on analytic geometry in the picture.
• 14 What does this series converge to, if anything?
• 14 $x+\ln(x)=0$, what is $x$?
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