Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
\lim_{n \to \infty }(1/2)\left ( n+2 \right )\sin \left ( \frac{2\pi}{n+2} \right )
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random