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.
UPGRADE TO PRO
APPS
TOUR
Sign in
b
i
n
o
m
i
a
l
4
0
,
2
8
*
3
1
2
4
4
0
Math Input
Natural Language
Math Input
