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(f(x))= (2(cos(x))^2)/(e^(sin(x) )(1 + x cos(x) - sin^2(x) + cos^2(x) (1 + sin(x)))) for x to 0
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random