
(5.1) trắc nghiệm toán chki 1
Quiz
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
henry henry
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83 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Góc có số đo 180° đổi ra radian là:
0
π
π/2
2π
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Cho π/2 < α < π. Giá trị lượng giác nào sau đây luôn dương?
sin(π + α)
cot(π/2 - α)
cos(-α)
tan(π + α)
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong các hàm số sau, hàm số nào là hàm số chẵn?
y = sin(x)
y = cos(x)
y = tan(x)
y = cot(x)
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Tìm tập giá trị T của hàm số y = 5 - 3sin(x):
T = [-1; 1]
T = [-3; 3]
T = [2; 8]
T = [5; 8]
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Nghiệm của phương trình cos(x) = -√3/2 là:
x = ±π/6 + kπ
x = ±5π/6 + k2π
x = ±π/3 + kπ
x = ±π/3 + k2π
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong các dãy số (un) cho bởi số hạng tổng quát un sau, dãy số nào là dãy số tăng?
un = 2n
un = 1/n
un = (n + 5)/(3n + 1)
un = (2n - 1)/(n + 1)
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong các dãy số (un), n ∈ ℕ* sau đây, dãy số nào là một cấp số cộng?
1; -3; -7; -11; -15
1; -3; -6; -9; -12
1; -2; -4; -6; -8
1; -3; -5; -7; -9
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