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.
tangent plane to z%3D2xy%5E2-x%5E2y at (x%2Cy)%3D(3%2C2)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
