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.
solve [x^2=4^2+5^2-40\cos \alpha, x^2=2^2+3^2+24\cos \alpha]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random