Задание
Соедини пары
| \(\cos 30\degree\) | \(1\) |
| \(\sin 150\degree\) | \(\dfrac{1}{2}\) |
| \(\tg 45\degree\) | \(\dfrac{\sqrt3}{3}\) |
| \(\cos 135\degree\) | \(-\sqrt3\) |
| \(\tg 120\degree\) | \(-\dfrac{\sqrt2}{2}\) |
| \(\ctg 60\degree\) | \(\dfrac{\sqrt3}{2}\) |
Пользуемся правилом, чтодля смежных углов \(\sin\alpha=\sin\beta\) , \(\cos\alpha=-\cos\beta\)