Дана арифметическая прогрессия: \(\displaystyle 5, 2, -1, -4, …\)

Сравните \(\displaystyle (a_{10}+ a_{12})\) и \(\displaystyle 2a_{11}{\small .}\)

\(\displaystyle (a_{10} + a_{12})\) [?|<|>|=] \(\displaystyle 2a_{11}{\small .}\)