Задание:
tg6xcos2x-sin2x-2sin4x=0
Решение:
sin6xcos2x/cos6x-sin2x-2sin4x=0sin6xcos2x-sin2xcos6x-2sin4xcos6x=0sin4x-2sin4xcos6x=0sin4x (1-2cos6x)=0x=Пk/41-2cos6x=0cos6x=1/2x=+-П/18+ Пk/3
Знаете другой ответ?
tg6xcos2x-sin2x-2sin4x=0
sin6xcos2x/cos6x-sin2x-2sin4x=0sin6xcos2x-sin2xcos6x-2sin4xcos6x=0sin4x-2sin4xcos6x=0sin4x (1-2cos6x)=0x=Пk/41-2cos6x=0cos6x=1/2x=+-П/18+ Пk/3
Знаете другой ответ?