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.
n
*
c
o
s
1
8
0
°
n
*
s
i
n
1
8
0
°
n
Math Input
Natural Language
Math Input
