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AnnetLav
@AnnetLav
October 2021
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Пример из тригонометрии!
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indus68
Тангенс --- функция нечетная, т.е. tg(-x) = -tg(x)
период тангенса --- pi, т.е. можно отбросить угол, кратный pi...
tg(-3pi-y) = -tg(3pi+y) = -tg(y)
получим: -4tg(y) - 3tg(y) = -7tg(y)
Ответ: -7
1 votes
Thanks 2
LFP
Verified answer
4(tg(-3π)-tgy)/(1-tg(-3 π )*tgy)-3tgy=
4(0-1)/(1-0)-3=-7
5 votes
Thanks 7
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Answers & Comments
период тангенса --- pi, т.е. можно отбросить угол, кратный pi...
tg(-3pi-y) = -tg(3pi+y) = -tg(y)
получим: -4tg(y) - 3tg(y) = -7tg(y)
Ответ: -7
Verified answer
4(tg(-3π)-tgy)/(1-tg(-3 π )*tgy)-3tgy=4(0-1)/(1-0)-3=-7