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.
cos(70 degrees) + sin(40 degrees) - cos(10 degrees)
cos(70 degrees) + sin(40 degrees) - cos(10 degrees)
Natural Language
Math Input
Extended Keyboard
