Friday, 25 October 2013

{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

How many ordered pairs (S, T) of subsets of {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} are there whose union contains
exactly three elements?
at
Labels: , , ,

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

Define f:R→R by \[f(x)= \begin{cases}(1-\cos x) \sin \left(\frac{1}{x}\right), & x \neq 0 \ 0, ...