Now, what familiar equations can I use?
Calculus
Level
3
\[\large\displaystyle\sum_{n=1}^{\infty}\frac{\left(1-\frac{1}{e}\right)^n}{n}=\ ?\]
With \(\displaystyle e = \sum_{m=0}^\infty \frac1{m!} \approx 2.71828 \).
by
Ikkyu San