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.
y=(sqrt 2 -sqrt {1+sin (x)}) /cos^2 (x)
y=(sqrt 2 -sqrt {1+sin (x)}) /cos^2 (x)
Natural Language
Math Input
Extended Keyboard