
Công thức lượng giác

Quiz
•
Mathematics
•
10th - 12th Grade
•
Medium
Nguyen Nga
Used 70+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cos(a+b) =
cosa.cosb+sina.sinb
cosa.cosb - sina.sinb
sina.cosb + cosa.sinb
cosb.sina-cosa.sinb
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin(a+b)=
sina.sinb-cosa.cosb
sina.cosb-sinb.cosa
cosa.sinb+cosb.sina
sina.sinb+cosa.cosb
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin2a=
2sina.cosa
2sina
2cosa
sina.cosa
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin3a=
sin3a-sina
4sin3a-3sina
3sina
-4sin3a+3sina
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cosa+cosb=
2cos(a+b).cos(a-b)
-2sin(a+b).sin(a-b)
2cos .cos
-2sin .sin
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sina.sinb=
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sina.cosb=
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