29.5. Решите уравнение:
1) $$sin(x - \frac{\pi}{6}) = \frac{\sqrt{2}}{2}$$
$$x - \frac{\pi}{6} = (-1)^n \frac{\pi}{4} + \pi n, n \in Z$$
$$x = \frac{\pi}{6} + (-1)^n \frac{\pi}{4} + \pi n, n \in Z$$
Ответ: $$x = \frac{\pi}{6} + (-1)^n \frac{\pi}{4} + \pi n, n \in Z$$
2) $$sin(\frac{x}{3} + 1) = -1$$
$$\frac{x}{3} + 1 = -\frac{\pi}{2} + 2\pi n, n \in Z$$
$$\frac{x}{3} = -1 - \frac{\pi}{2} + 2\pi n, n \in Z$$
$$x = -3 - \frac{3\pi}{2} + 6\pi n, n \in Z$$
Ответ: $$x = -3 - \frac{3\pi}{2} + 6\pi n, n \in Z$$
3) $$\sqrt{2}sin(\frac{\pi}{12} - 3x) - 1 = 0$$
$$sin(\frac{\pi}{12} - 3x) = \frac{1}{\sqrt{2}} = \frac{\sqrt{2}}{2}$$
$$\frac{\pi}{12} - 3x = (-1)^n \frac{\pi}{4} + \pi n, n \in Z$$
$$-3x = (-1)^n \frac{\pi}{4} - \frac{\pi}{12} + \pi n, n \in Z$$
$$x = (-1)^{n+1} \frac{\pi}{12} + \frac{\pi}{36} - \frac{\pi n}{3}, n \in Z$$
Ответ: $$x = (-1)^{n+1} \frac{\pi}{12} + \frac{\pi}{36} - \frac{\pi n}{3}, n \in Z$$