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.
2*[(rcosv+rsinv)/(rcosv-rsinv)]/[cos(2v)]=2/[1-sin(2v)]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random