Integration by parts
Anyone familiar with calculus would know how useful this formula is at times when we are desparate.Here's an amazing proof:
Basel's Problem
$$1+\frac{1}{4}+\frac{1}{9}+\cdots = \sum_{n=1}^{\infty}\frac{1}{n^2}=\frac{\pi ^2}{6}$$
Comments
Post a Comment