Posted by Mike on Thursday, October 27, 2011 at 8:24pm.
Predict the numbers in the sixth role.
1.)1
2.)1,1
3.)1,2,1
4.)1,3,3,1
5.)1,4,6,4,1
6.)?

Math  derek, Thursday, October 27, 2011 at 8:37pm
1,10,10,1

Math  Damon, Thursday, October 27, 2011 at 8:38pm
Google "Pascal's Triangle"
This is also called "binomial coefficients"
left and right ends of rows are 1
every element is sum of above to left and right
like 3 = 1+2
and 6 = 3+3
so
1 5 10 10 5 1

Math  Damon, Thursday, October 27, 2011 at 8:38pm
You forgot the threes Derek.

Math  derek, Thursday, October 27, 2011 at 8:39pm
1,5,10,10,5,1

Math  Damon, Thursday, October 27, 2011 at 8:39pm
I mean the fives.

Math  Reiny, Thursday, October 27, 2011 at 8:42pm
have you seen Pascal's triangle ?
http://ptri1.tripod.com/
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