this is what i get but in the exercice rule i must get extrema min or max so someting
f(x,y)=xlog(y)−ylog(x)
we'll do it the long way first and then use a shortcut
∂f∂x=log(y)−yx
∂f∂y=xy−log(x)
set these both equal to zero and solve
log(y)=yx
log(x)=xy
The only solution to this is...
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