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.
graph y=sin(x) and y=0.911 and x=pi/2 from x=0 to x=2pi
graph y=sin(x) and y=0.911 and x=pi/2 from x=0 to x=2pi
Natural Language
Math Input
Extended Keyboard
