cos(a-b) = ?
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Công thức toán
Quiz
•
Mathematics
•
11th Grade
•
Easy
Phan Nguyen
Used 6+ times
FREE Resource
36 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cosa.cosb+sina.sinb
cosa.cosb-sina.sinb
sina.cosb-cosa.sinb
sina.cosb+cosa.sinb
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
cos(a + b)=?
cosa.cosb-sina.sinb
cosa.cosb+sina.sinb
sina.cosb+sinb.cosa
sina.cosb-sinb.cosa
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin(a-b)=?
sina.cosb - cosa.sinb
cos(a - b)
cos(a)cos(b) + sin(a)sin(b)
sin(a) + sin(b)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tan(a+b)=?
tan(a) - tan(b)
tan(a + b)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
tan(a-b)=?
tan(a - b)
tan(a)tan(b)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
sin2a=?
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
cos2a=?
sin²(a) + cos²(a)
3cos²(a) - 2c
1 - 2sin²a
cos²a - sin²a
2cos²a-1
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