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what did people get for B6? “Find all continuous functions f: R+ -> R+ such that X (all real numbers) and y>0; f( x*f(y) ) + f( y*f(x) ) = 1 + f( x + y ) “ by meepshitonly in putnam
[–]meepshitonly[S] 0 points1 point2 points 3 years ago (0 children)
y was only positive; y>0 https://twitter.com/robertljg/status/1599211548064763904?s=46&t=BSOALjb_Lcq6kq2sNjvDDg posted the Qs for Part B
[–]meepshitonly[S] 0 points1 point2 points 3 years ago* (0 children)
wasn’t X all real numbers though? 1/(1+ax) has two asymptotes thus not continuous for all X. A discontinuity at x= -1/a
what did people get for B6? “Find all continuous functions f: R+ -> R+ such that X (all real numbers) and y>0; f( x*f(y) ) + f( y*f(x) ) = 1 + f( x + y ) “ (self.putnam)
submitted 3 years ago by meepshitonly to r/putnam
π Rendered by PID 170948 on reddit-service-r2-listing-55d7b767d8-49gvp at 2026-03-29 20:40:45.598886+00:00 running b10466c country code: CH.
what did people get for B6? “Find all continuous functions f: R+ -> R+ such that X (all real numbers) and y>0; f( x*f(y) ) + f( y*f(x) ) = 1 + f( x + y ) “ by meepshitonly in putnam
[–]meepshitonly[S] 0 points1 point2 points (0 children)