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/dx [sin(4x)/4] - [tan(7x)/7]
d/dx [sin(4x)/4] - [tan(7x)/7]
Natural Language
Math Input
Extended Keyboard
