U={1,2,3,4,5,6,7,8,9,10} How many 5-element subsets does U have? I know how to calculate total number of subsets but I can't find the formula for this question in my notes. Any help would be greatly appreciated.
Follow Math Help Forum on Facebook and Google+
Originally Posted by graffitihead U={1,2,3,4,5,6,7,8,9,10} How many 5-element subsets does U have? I know how to calculate total number of subsets but I can't find the formula for this question in my notes. Any help would be greatly appreciated. The answer is a combination of 10 choose 5.
View Tag Cloud