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.
range of y = 7cos(x) + 4, pi <=x <= 3pi
range of y = 7cos(x) + 4, pi <=x <= 3pi
Natural Language
Math Input
Extended Keyboard
