
Toán Câu 1-41
Authored by Tiin F
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KG
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41 questions
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1.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Câu 1. Số đo theo đơn vị radian của góc
30° là
A.π/6
B.π/4
C.π/3
D.π/2
2.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Câu 2. Giá trị của sinπ/6 bằng:
B. 0.
A. 1.
C.1/2
D. √2/2
3.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Câu 3: Giá trị cos 60° bằng
A. 1
B. √3/2
C. ½
D. √2/2
4.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Câu 4: Trong các công thức sau, công thức nào đúng?
A sin(a – b) = sin a.cos b – cosa.sin b.
C. sin(a+b) = sin a. Cos b-cos a.sin b.
B. cos (a – b) = cos a.cos b-sin a.sin b.
5.
MULTIPLE CHOICE QUESTION
15 mins • 18 pts
Câu 5: Hình vẽ dưới đây là đồ thị của hàm
A y = sin2x
B. y = cot2x
C. tan2x
D.cos2x
6.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Câu 6: Nghiệm của PT cot x = cotπ/6 là
A. x = π/6 + kπ
B. x = -π/6 + kπ
C. x = - π/3 + kπ
x = π/3 + kπ
7.
MULTIPLE CHOICE QUESTION
15 mins • 20 pts
Câu 7. Mệnh đề nào dưới đây sai?
A. Hàm số y = tanx tuần hoàn với chu kì π
B. Hàm số y=cosx tuần hoàn với chu kì π
. C. Hàm số y=cotx tuần hoàn với chu kì π
D..Hàm số y=sin x tuần hoàn với chu kì 2π
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