Діагностичний тест. Тригонометричні вирази
Authored by Вікторія Бортник
Mathematics
11th Grade
Used 11+ times
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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin4a+sin2acos2a-sin2a =
-2sin2a
1
2cos2a
2sin2a
0
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
ctg(-a)*tg(-a)-sin2(-a) =
cosa
cos2a
sin2a
1+sin2a
-cos2a
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
sin2a
1
3cos2a
3
0
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0,5
-0,25
-0,5
-2
0,25
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Знайти значення виразу 3sin2a-7cos2a, якщо cosa=-0,1
2
2,9
3,1
3,96
2,92
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
0
1
2
3
4
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