Дана арифметическая прогрессия: \(\displaystyle 5, 8, 11, 14, …\)

Сравните \(\displaystyle (a_{12}+ a_{14})\) и \(\displaystyle 2a_{13}{\small .}\)

\(\displaystyle (a_{12} + a_{14})\) [?|<|>|=] \(\displaystyle 2a_{13}{\small .}\)