
LUYỆN TẬP LƯỢNG GIÁC 1
Authored by H?ng Th?
Mathematics
11th Grade
Used 6+ times

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55 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2sina.cosa=
sin2a
cos2a
tan2a
cot2a
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
cos2a=?
2sin2a-1
1-2cos2a
1-sin2a
cos2a-sin2a
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(sin(a+b)+sin(a-b))=?
sina.sinb
cosa.sinb
sina.cosb
cosa.cosb
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
sina + cos a =?
sin( x - )
sin( x + )
cos( x - )
cos( x + )
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chọn khẳng định SAI trong các khẳng định sau:
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
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