Задание

Вычисли и запиши ответы

\textcolor{white}{\boxed{\textcolor{black}{\cos^2 \left(\dfrac{\pi}8 \right) + \tg \left(\dfrac{\pi}8 \right) \cdot \ctg \left(\dfrac{\pi}8 \right) +\sin^2 \left(\dfrac{\pi}8 \right) }}}=

\textcolor{white}{\boxed{\textcolor{black}{\sin \left(\dfrac{\pi}4 \right) \cdot \cos \left(\dfrac{\pi}4 \right) \cdot \tg\left(\dfrac{\pi}4 \right) \cdot \ctg\left(\dfrac{\pi}4 \right)}}}=