
Интегралы: Определение и Интегрирование

Quiz
•
Mathematics
•
11th Grade
•
Hard
Айдана Жаманкулова
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
f(x) = 3x^2 функциясының [1, 4] интервалындағы анықталған интегралын анықтаңыз.
63
50
72
45
Answer explanation
Чтобы найти определенный интеграл функции f(x) = 3x^2 на интервале [1, 4], вычисляем: \int_1^4 3x^2 dx = [x^3]_{1}^{4} = 4^3 - 1^3 = 64 - 1 = 63. Правильный ответ: 63.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
∫ sin(x) dx интегралын есептеңіз.
tan(x) + C
sin(x) + C
-cos(x) + C
-sin(x) + C
Answer explanation
Интеграл функции sin(x) равен -cos(x) + C. Это связано с тем, что производная -cos(x) возвращает sin(x). Поэтому правильный ответ: -cos(x) + C.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
f(x) = x^3 функциясының [0, 2] интервалындағы анықталған интегралын табыңыз.
2
8
4
6
Answer explanation
Чтобы найти определенный интеграл функции f(x) = x^3 на интервале [0, 2], вычисляем: \int_0^2 x^3 dx = [\frac{x^4}{4}]_0^2 = \frac{2^4}{4} - \frac{0^4}{4} = \frac{16}{4} = 4. Правильный ответ: 4.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
∫ cos(2x) dx интегралын есептеңіз.
(1/4) sin(2x) + C
(1/2) sin(2x) + C
sin(2x) + C
(1/2) cos(2x) + C
Answer explanation
Чтобы вычислить интеграл ∫ cos(2x) dx, используем замену u = 2x, тогда du = 2dx, и dx = du/2. Интеграл становится (1/2) ∫ cos(u) du = (1/2) sin(u) + C = (1/2) sin(2x) + C. Правильный ответ: (1/2) sin(2x) + C.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
f(x) = 1/x функциясының [1, e] интервалындағы анықталған интегралын анықтаңыз.
1
0
2
ln(e)
Answer explanation
Определенный интеграл от f(x) = 1/x на интервале [1, e] равен ln(e) - ln(1) = 1 - 0 = 1. Поэтому правильный ответ - 1.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Интеграл ∫ (2x + 3)/(x^2 + 3x + 2) dx-ты есептеңіз.
2ln|x + 1| + C
ln|x + 3| - ln|x + 1| + C
ln|x - 1| + ln|x + 2| + C
ln|x + 1| - ln|x + 2| + C
Answer explanation
Для вычисления интеграла используем разложение на простейшие дроби: (2x + 3)/(x^2 + 3x + 2) = A/(x + 1) + B/(x + 2). Найдя A и B, интегрируем и получаем ln|x + 1| - ln|x + 2| + C.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
f(x) = e^x функциясының [0, 1] интервалындағы анықталған интегралын табыңыз.
1 - e
e + 1
e^2 - 1
e - 1
Answer explanation
Чтобы найти определенный интеграл от f(x) = e^x на интервале [0, 1], вычисляем: \int_0^1 e^x \, dx = [e^x]_0^1 = e^1 - e^0 = e - 1. Правильный ответ: e - 1.
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