Найдите \( \tg\color{red}{\alpha},\) если \( \sin\color{red}{\alpha}=\frac{12}{13}\) и \( 90º<\color{red}{\alpha}<180º.\) \( \tg\color{red}{\alpha}=\)
Задание

Найдите \(\displaystyle \tg\color{red}{\alpha}\small,\) если \(\displaystyle \sin\color{red}{\alpha}=\frac{12}{13}\) и \(\displaystyle 90º<\color{red}{\alpha}<180º\small.\)

\(\displaystyle \tg\color{red}{\alpha}=\)[ ]