Найди верное

Quiz
•
Mathematics
•
9th Grade
•
Medium
Шахиста Расулова
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Чему равен sin225°?
√2/2
-√2/2
1
0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Чему равен cos(-240°)?
-1
√3/2
1
-1/2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Чему равен ctg150°?
-√3/3
-√3
0
√3/3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Упростите выражение tg(π/2-α)*tg(π+α)-cos(π/2+α)*sin(π+α).
cos^2 α
1
0
1+sin^2 α
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Чему равен sin 90°?
0
2
1
cos 20
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