Đề thi Giữa kì 1 Toán 10 năm 2023-2024 trường Thuận Thành 1 (Bắc Ninh)

$\exists x \in \mathbb{R}, x^2 + 3x + 1 < 0$

$\exists x \in \mathbb{R}, x^2 + 3x + 1 \le 0$

$\forall x \in \mathbb{R}, x^2 + 3x + 1 \le 0$

$\exists x \in \mathbb{R}, x^2 + 3x + 1 \ge 0$

$[5; +\infty)$

$(5; +\infty)$

$(-\infty; 5]$

$\{5\}$

$C_\mathbb{R} A = (-\infty; 3]$

$C_\mathbb{R} A = (-\infty; 3)$

$C_\mathbb{R} A = (3; +\infty)$

$C_\mathbb{R} A = [3; +\infty)$

$\{0;2;4\}$

$\{\emptyset; M \}$

$\{1;3;5\}$

$\emptyset$

$2 \sqrt{13}$

$3 \sqrt{12}$

$2 \sqrt{37}$

$2 \sqrt{5}$

$\sin A = \dfrac{c}{2R}$

$\dfrac{a}{\sin A} = 4R$

$\sin B = \dfrac{b}{2R}$

$a.\sin A = 2R$

$\sin \alpha = \cos \beta$

$\tan \alpha = \cot \beta$

$\cot \alpha . \cot \beta = 1$

$\cos \alpha = - \sin \beta$

5

7

$5 \sqrt{3}$

8

$\overrightarrow{OA} = \overrightarrow{OB} - \overrightarrow{BA}$

$\overrightarrow{OA} = \overrightarrow{CA} - \overrightarrow{CO}$

$\overrightarrow{AB} = \overrightarrow{AC} + \overrightarrow{BC}$

$\overrightarrow{AB} = \overrightarrow{OB} + \overrightarrow{OA}$

A. $[2; +\infty)$ .

B. $(-\infty;-3) \cup [2; +\infty)$ .

C. $(3; +\infty)$ .

D. $(-\infty; -3)$ .

3

4

5

6