Автор - DrFresh

Нуждаюсь в помощи cos(-п/6)tg 45+sin(-п/3)ctg 45

Ответ

Автор - nKrynka
cos(-π/6)tg(45) + sin(-π/3)ctg(45) = cos(-π/6)tg(π/4) + sin(-π/3)ctg(π/4)
 = (√3/2)*1 + (-√3/2)*1 = 0

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