
Тригонометрические формулы
Authored by Гульнара Кусаинова
Mathematics
9th Grade
Used 54+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите верное утверждение:
cos(-x)=cos
sin(-x)=sinx
tg(-x)=tgx
ctg(-x)=ctgx
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Продолжи формулу cos (x + y) =
cos x cos y + sin x siny
cos x sin y + sin x cos y
cos x cos y - sin x sin y
cos x sin y - sin x cos y
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Продолжи формулу sin x cos y+cos x sin y =
cos (x + y)
sin (x + y)
sin (x - y)
cos (x - y)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Основное тригонометрическое тождество
cos x + sin x = 1
cos2 x - sin2 x = 1
cos2 x + sin2 x = 1
cos x - sin x = 1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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