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.
在 [0, 2pi) 内求解 sin x > 1/2 。
在 [0, 2pi) 内求解 sin x > 1/2 。
Natural Language
Math Input
Extended Keyboard
