11. \( \sin(-353^\circ), \cos(\frac{14\pi}{3}), ctg (-605^\circ), tg(\frac{12\pi}{5}) \)

* \( \sin(-353^\circ) = -\sin 353^\circ = -\sin(360^\circ - 7^\circ) = \sin 7^\circ \) * \( \cos(\frac{14\pi}{3}) = \cos(4\pi + \frac{2\pi}{3}) = \cos(\frac{2\pi}{3}) = \cos(\pi - \frac{\pi}{3}) = -\cos(\frac{\pi}{3}) \) * \( ctg (-605^\circ) = -ctg 605^\circ = -ctg(360^\circ + 245^\circ) = -ctg 245^\circ = -ctg(180^\circ + 65^\circ) = -ctg 65^\circ \) * \( tg(\frac{12\pi}{5}) = tg(2\pi + \frac{2\pi}{5}) = tg(\frac{2\pi}{5}) \)