1. Для \(54^\circ\): \(\frac{54 \times \pi}{180} = \frac{3\pi}{10}\) радиан.
2. Для \(135^\circ\): \(\frac{135 \times \pi}{180} = \frac{3\pi}{4}\) радиан.
3. Для \(-36^\circ\): \(\frac{-36 \times \pi}{180} = -\frac{\pi}{5}\) радиан.
Ответ: \(\frac{3\pi}{10}\), \(\frac{3\pi}{4}\), \(-\frac{\pi}{5}\)