Level:
Project ID:
1003076513
Accepted:
1
Clonable:
0
Easy:
0
If two of the values of \( \sin\alpha \), \( \cos\alpha \), \( \mathrm{tg}\alpha\) and \( \mathrm{cotg}\alpha \) are negative, then \( \alpha \) belongs to the interval
\( \left(\pi; \frac{3\pi}2 \right) \).
\( \left(0; \frac{\pi}2 \right) \).
\( \left(\frac{\pi}2; \pi\right) \).
\( \left( \frac{3\pi}2; 2\pi \right) \).