Untitled Quiz

Untitled Quiz

3rd Grade

10 Qs

quiz-placeholder

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Untitled Quiz

Untitled Quiz

Assessment

Quiz

Mathematics

3rd Grade

Hard

Created by

Phượng Kiều

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10 questions

Show all answers

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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