Задача 24.
Расположите в порядке убывания числа:   \(\operatorname{c} {\text{tg}}\dfrac{\pi }{9};\,\,\,\,{\text{tg}}\dfrac{{5\pi }}{9};\,\,\,\,\sin \dfrac{\pi }{9}\)

1) \(\operatorname{c} {\text{tg}}\dfrac{\pi }{9};\,\,\,\,{\text{tg}}\dfrac{{5\pi }}{9};\,\,\,\,\sin \dfrac{\pi }{9}\) 2) \(\operatorname{c} {\text{tg}}\dfrac{\pi }{9};\,\,\,\,\sin \dfrac{\pi }{9};\,\,\,\,{\text{tg}}\dfrac{{5\pi }}{9}\)
3) \({\text{tg}}\dfrac{{5\pi }}{9};\,\,\,\,{\text{ctg}}\dfrac{\pi }{9};\,\,\,\,\sin \dfrac{\pi }{9}\) 4) \({\text{tg}}\dfrac{{5\pi }}{9};\,\,\,\,\sin \dfrac{\pi }{9};\,\,\,\,{\text{ctg}}\dfrac{\pi }{9}\)
5) \(\sin \dfrac{\pi }{9};\,\,\,\,{\text{ctg}}\dfrac{\pi }{9};\,\,\,\,{\text{tg}}\dfrac{{5\pi }}{9}\) 6) \(\sin \dfrac{\pi }{9};\,\,\,\,{\text{tg}}\dfrac{{5\pi }}{9};\,\,\,\,{\text{ctg}}\dfrac{\pi }{9}\)

Ответ

Решение