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 A = cos(x) C + sin(x) D, B = -sin(x) C + cos(x) D, for C, D
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random