How do I find the amount of all subsets in a set that have n elements?

by Rose Lake   Last Updated April 16, 2018 07:20 AM

How do I find the amount of subsets that have n elements in a set with e elements?

For example, if you had a set with 5 elements, and wanted all subsets with 3 elements, you would have 9 subsets.

Related Questions

Self-similar parametric curve

Updated March 11, 2017 08:20 AM

The cardinality of $\Bbb R^{\Bbb N}$

Updated March 07, 2017 04:20 AM

Using Peano axioms to define natural numbers

Updated April 18, 2017 03:20 AM

Natural Number Inductive Proof

Updated January 31, 2019 00:20 AM