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.
d^2/dx^2((ax+b)sin(x) + (cx+d)cos(x) ) - 4((d/dx)((ax+b)sin(x) + (cx+d)cos(x) ) )+ 3((ax+b)sin(x) + (cx+d)cos(x) )
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random