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(x+2y)=1, sin(2x+y)=sqrt(3)/2, 0<x<2pi, 0<y<2pi
cos(x+2y)=1, sin(2x+y)=sqrt(3)/2, 0<x<2pi, 0<y<2pi
Natural Language
Math Input
Extended Keyboard