Julekalender #11
Lagt inn: 11/12-2017 18:32
La $x,y \in [0,1]$.
Vis at $\frac x{1+y} + \frac y{1+x} \leq 1$.
Vis at $\frac x{1+y} + \frac y{1+x} \leq 1$.
Matteprat
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https://www.matematikk.net/matteprat/viewtopic.php?f=19&t=46652