Đề thi Giữa kì 1 Toán 11 năm 2025-2026 THPT Nguyễn Khuyến (Tp.HCM)

$u_1 = -20$

$u_1 = -4$

$u_1 = -32$

$u_1 = 16$

1;1;1;1;1;1.

3;1;-1;-2;-4.

$\dfrac{1}{2}; \dfrac{3}{2}; \dfrac{5}{2}; \dfrac{7}{2}; \dfrac{9}{2}$.

-8;-6;-4;-2;0.

$\dfrac{11}{289}$

$\dfrac{23}{627}$

$\dfrac{25}{731}$

$\dfrac{4}{113}$

$\dfrac{2\pi}{3}$.

$\dfrac{3\pi}{4}$.

$\dfrac{4\pi}{3}$.

$\dfrac{\pi}{3}$.

9,04(vòng).

7,04(vòng).

10,04(vòng)

8,04(vòng).

A. $D = \mathbb{R}\setminus \left\{\dfrac{\pi}{2}+k\pi, k \in \mathbb{Z}\right\}$.

B. $D = \mathbb{R}\setminus \{k\pi, k \in \mathbb{Z}\}$.

C. $D = \mathbb{R}\setminus \{k2\pi, k \in \mathbb{Z}\}$.

D. $D = \mathbb{R}\setminus \left\{\dfrac{\pi}{2} + k2\pi, k \in \mathbb{Z}\right\}$.

$u_1 = 22$.

$u_5 = 31$.

$u_2 = 2$.

$u_3 = 6$.