Then the left-hand side is equal to 10 − ϵ 2 + O ( ϵ 3 ) {\displaystyle 10-\epsilon ^{2}+O(\epsilon ^{3})} , thus lower than 10 when ϵ {\displaystyle \epsilon } is small enough.
Ekkor a bal oldal 10 − ϵ 2 + O ( ϵ 3 ) {\displaystyle 10-\epsilon ^{2}+O(\epsilon ^{3})} , így kisebb 10-nél, ha ϵ {\displaystyle \epsilon } elég kicsi.