Задание
Таблица значений котангенсов:
\(\displaystyle \frac{\pi}{6}\,(30^{\circ})\) | \(\displaystyle \frac{\pi}{4}\,(45^{\circ})\) | \(\displaystyle \frac{\pi}{3}\,(60^{\circ})\) | |
\(\displaystyle \ctg\) | \(\displaystyle \sqrt{3}\) | \(\displaystyle 1\) | \(\displaystyle \frac{1}{\sqrt{3}}\) |
Решение