Library / /48 of 151
, 2017
Algebra Difficulty 6.0 National Olympiad Find the answer Hungary
Do there exist bijective functions f,g:Q→Q such that the function f(g(x)) is strictly increasing, but the function g(f(x)) is strictly decreasing?
Want a route through all this instead of an archive?
The track
puts 2,000 problems in a working order, from AMC 10 level to the IMO shortlist.
Source: KöMaL,
licensed Rights held by KöMaL and the MATFUND Foundation.
Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.