What are all possible combination of ten digits from 1-20 please list them if you can. or e-mail 'em to akaba50@yahoo.com
by 
grandpa75
ANSWERS: 2
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I really think you should do your own homework. Otherwise you learn nothing.
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The number of combinations of ten numbers out of 20 is a MASSIVE number : 20! divided by (10! squared). That's equivalent to (20 x 19 x 18 x 17 x 16 x 15 x 14 x 13 x 12 x 11) / (10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1) if you fancy working that out. I doubt you'll want all of these emailed to you, therefore. http://www.mathwords.com/c/combination_formula.htm
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