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.
ln(3*tg^2(x)--4)/6=(ln(cos^2(x)--3)-2*ln(cos(x)))/6
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random