Sunday, 20 October 2013

The harmonic mean of

The harmonic mean of two positive integers is 2006. Find the greatest possible value of their
arithmetic mean.

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, ...