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.
UPGRADE TO PRO
APPS
TOUR
Sign in
{(49^cos(x))^sin(x) = 7^(sqrt(2)*cos(x)),5*Pi/2<=x,x<=4*Pi}
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random