
Формулы синус, косинус и тангенс суммы

Quiz
•
Mathematics
•
10th Grade
•
Hard
Светлана Лавинецкая
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Синус суммы это..
sin(x+y)
sinx+ siny
sin(x•y)
sinx - siny
2.
FILL IN THE BLANK QUESTION
10 sec • 1 pt
Вместо знака "?" вставьте алгебраический знак:
cos(x+y) = cosxcosy .?. sinxsiny
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Вычислите sin77°cos13°+sin13°cos77°=
sin64°
1
0
cos64°
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cos36°cos16° + sin36°sin164°
sin20°
cos52°
cos20°
нельзя применить формулу
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
sin30°cos100° + cos30°sin100° =
sin70°
- cos40°
cos40°
Нет верного ответа
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выберите верное утверждение:
cos(-x)=cosх
sin(-x)=sinx
tg(-x)=tgx
ctg(-x)=ctgx
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Выберите верное утверждение:
cos(-x)=cosх
sin(-x)=sinx
tg(-x)=tgx
ctg(-x)=ctgx
8.
MULTIPLE CHOICE QUESTION
10 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)
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