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.
计算 integrate e^(-x) sin(2x) dx 。
计算 integrate e^(-x) sin(2x) dx 。
Natural Language
Math Input
Extended Keyboard
