Задание
Соедини части
- \sin^2 \left(\dfrac{3\pi}{4} \right) - \cos^2 \left(\dfrac{3\pi}{4} \right) =
\tg \left(\dfrac{3\pi}{5} \right) \cdot \ctg \left(\dfrac{3\pi}{5} \right) =
\sin \left(\dfrac{3\pi}{2} \right) \cdot \cos \left(\dfrac{3\pi}{2} \right) =
1
0
-1