Saturday 28 September 2013

ordered triples

How many ordered triples (a, b, c) of positive integers are there such that none of a, b, c exceeds 2010 and each of a, b, c divides a + b + c?
at

No comments:

Post a Comment

Subscribe to: Post Comments (Atom)

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