
Untitled Quiz
Quiz
•
Mathematics
•
3rd Grade
•
Hard
Phượng Kiều
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tính tích phân 2cos(x)sin(x)dx + 1, kết quả bằng bao nhiêu?
31
19
17
21
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khẳng định nào sau đây sai?
[f(x) - g(x)]dx = f(x)dx - g(x)dx
kf(x)dx = k ∫f(x)dx
[f(x) - g(x)]dx = f(x)dx + g(x)dx
f(x)dx = f(x) + C
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phát biểu nào sau đây là đúng?
(2x^2 + 2xcos(2x) - sin(2x)) + C
(2x^2 + 2xcos(2x) + sin(2x)) + C
(2x^2 - 2xcos(2x) + sin(2x)) + C
(2x^2 - 2xcos(2x) - sin(2x)) + C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm nguyên hàm của hàm số 3cos(2x) - 1
3cot(2x) - C - 1
3tan(2x) - C + 1
3tan(2x) - C
3tan(2x) - C - 1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho ∫(2x + 1)dx = 21, chọn khẳng định đúng.
∫(3x^2)dx = 12
∫(3x^2)dx = 6
∫(3x^2)dx = -6
∫(3x^2)dx = -12
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Biết ∫6dx = 6 và ∫x^2dx = a, ∫x dx = b, tính giá trị của 2a + 3b
5
7
4
3
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Tính ∫cos(x)sin(x)dx
ln(cos(x)) + C
ln(cos(x)) + C
ln(cos(x)) + C
ln(cos(x) - sin(x)) + C
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