Tất tần tật về lượng giác

Quiz
•
Mathematics
•
11th Grade
•
Easy
Nguyễn Vỹ
Used 3+ times
FREE Resource
50 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin2a = ?
2sina.cosa
2cos2a.sin2a
cos2a - sin2a
sin2a + cos2a
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chọn câu sai: cos2a = ?
cos2a - sin2a
2cos2a - 1
1 - 2sin2a
sin2a + cos2a
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin4a = ?
sin2a.cos2a
2sin2a.cos2a
4sin2a.cos2a
4sin2a.cos2a
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cos4a = ?
2sin2a.cos2a
2sin2a - 2cos2a
cos22a - sin22a
cos22a + sin22a
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin8a = ?
sin4a.cos4a
4sin4a.cos4a
2sin4a.cos4a
8sin4a.cos4a
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Điều kiện của y = tanx là:
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Điều kiện của y = cotx là:
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