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.
4x^2d^2x/dt^2+3xdx/dt+11 = 120sin(50t)
4x^2d^2x/dt^2+3xdx/dt+11 = 120sin(50t)
Natural Language
Math Input
Extended Keyboard
