Решите уравнение \(\tg{2t}=-1.\)

• \(-\frac{\pi}{8} +\frac{\pi n}{2}, n \in Z\)
• \(\frac{\pi}{8} +\frac{\pi n}{2}, n \in Z\)
• \(-\frac{\pi}{8} +\pi n, n \in Z\)
• \(\frac{\pi}{8} +\pi n, n \in Z\)