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.
arctan ((sin 46 sin 48 sin 74 sin 68)/(sin 22 sin 38 sin 64 + sin 46 sin 48 sin 74 cos 68))
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random