Sunday, 13 October 2013

mn = 25!

Find the number of rational numbers (m/n), where m,n are relatively prime positive integers satisfying m < n and mn = 25!

No comments:

Post a Comment

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