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.
4
0
9
0
0
0
0
0
C
h
o
o
s
e
1
0
0
0
0
0
4
1
4
0
1
0
0
0
0
0
0
C
h
o
o
s
e
1
0
0
0
0
0
Math Input
Natural Language
Math Input
