Đề thi Giữa kì 2 Toán 12 năm 2025-2026 trường THPT Bùi Hữu Nghĩa (Cần Thơ)

$\displaystyle \int_a^b kdx = k(b - a), \forall k \in \mathbb{R} \setminus \{0\}$

$\displaystyle \int_a^b f(x)dx = \int_a^c f(x)dx + \int_c^b f(x)dx, (a < c < b)$

$\displaystyle \int_a^b f(x)dx = - \int_b^a f(x)dx$

$\displaystyle \int_a^b f(x)dx = \int_b^a f(x)dx$

$\displaystyle \int kf(x) dx = k \int f(x) dx \;( k \in \mathbb{R} \setminus \{0\})$

$\displaystyle \int \frac{f(x)}{g(x)} dx = \frac{\int f(x) dx}{\int g(x) dx}$

$\int f'(x) dx = f(x) + C \quad (C \in \mathbb{R})$

$\displaystyle \int \bigl[f(x) + g(x)\bigr] dx = \int f(x) dx + \int g(x) dx$

$x - 2y + 3z + 12 = 0$

$x - 2y + 3z + 11 = 0$

$x + 2y - 3z + 12 = 0$

$x + 2y - 3z + 11 = 0$

10

11

8

9

$\dfrac{84^x}{\ln 84} + C, \; C \in \mathbb{R}$

$84^x \ln 84 + C, \; C \in \mathbb{R}$

$42^x \ln 42 + C, \; C \in \mathbb{R}$

$\dfrac{42^x}{\ln 42} + C, \; C \in \mathbb{R}$

$\displaystyle \int f(x) \, dx = 3x^3 + \ln x + C.$

$\displaystyle \int f(x) \, dx = x^3 + \ln |x| + C.$

$\displaystyle \int f(x) \, dx = 3x^3 + \ln |x| + C.$

$\displaystyle \int f(x) \, dx = x^3 + \ln x + C.$

$-x + y + 2z + 2 = 0.$

$-x + y + 2z - 1 = 0.$

$-x + y + 2z = 0.$

$-x + y + 2z + 1 = 0.$

$\displaystyle \int \sin x \, dx = \cos x + C.$

$\displaystyle \int \cos x \, dx = \sin x + C.$

$\displaystyle \int dx = x + C.$

$\displaystyle \int x^\alpha \, dx = \frac{x^{\alpha +1}}{\alpha +1} + C \quad (\alpha \in R, \alpha \neq -1).$

$m = -3, \ m = 4.$

$m = 3, \ m = 4.$

$m = -3, \ m = -4.$

$m = 3, \ m = -4.$

$f(x) = 3x - 5 \sin x + 10.$

$f(x) = 3 - 5 \cos x + 12.$

$f(x) = 3x + 5 \sin x + 10.$

$f(x) = 3 + 5 \cos x + 2.$

29.

1.

-9.

9.

$\displaystyle \int_a^b f(x) \, dx = F(a) - F(b).$

$\displaystyle \int_a^b f(x) \, dx = F(a) . F(b).$

$\displaystyle \int_a^b f(x) \, dx = F(b) - F(a).$

$\displaystyle \int_a^b f(x) \, dx = F(a) + F(b).$