Đề thi Giữa kì 2 Toán 10 năm 2024-2025 trường THPT Thủ Đức (Tp.HCM)

A. $\arraycolsep=1.4pt\begin{array}{c|cccc} x & -\infty & -2 & 3 & +\infty \\ \hline f(x) & - & 0 & + & 0 - \\ \end{array}$

B. $\arraycolsep=1.4pt\begin{array}{c|cccc} x & -\infty & -2 & 3 & +\infty \\ \hline f(x) & + & 0 & - & 0 + \\ \end{array}$

C. $\arraycolsep=1.4pt\begin{array}{c|cccc} x & -\infty & -3 & 2 & +\infty \\ \hline f(x) & - & 0 & + & - \\ \end{array}$

D. $\arraycolsep=1.4pt\begin{array}{c|cccc} x & -\infty & -3 & 2 & +\infty \\ \hline f(x) & + & 0 & - & + \\ \end{array}$

A. $x^2 - x - 2 > 0$.

B. $x^2 - 2x + 1 > 0$.

C. $x^2 - 2x + 1 \geq 0$.

D. $-x^2 + 2x - 1 < 0$ .

A. $\mathcal{D} = \mathbb{R} \setminus \left\{1; \frac{1}{3} \right\}$ .

B. $\mathcal{D} = \left\{ \frac{1}{3} ; 1 \right\}$ .

C. $\mathcal{D} = \left(-\infty; \frac{1}{3} \right) \cup (1; + \infty)$ .

D. $\mathcal{D} = \left(-\infty; \frac{1}{3} \right] \cup [1; + \infty)$ .

A. 17 .

B. 32 .

C. 30 .

D. 15 .

A. 39 .

B. 380 .

C. $20^2$ .

D. 361 .

A. 0 .

B. Vô số nghiệm.

C. 1 .

D. 2 .

A. $x = -8$ .

B. $x = 1$ .

C. $x = -1$ .

D. $x = -1 ; \; x = -8$ .

A. $\overrightarrow{n_4} = (2; -3)$ .

B. $\overrightarrow{n_2} = (2; 3)$ .

C. $\overrightarrow{n_3} = (3; 2)$ .

D. $\overrightarrow{n_1} = (-3; 2)$ .

$I\left(3;-\dfrac{4}{3}\right)$

$I\left(\dfrac{8}{3};-\dfrac{4}{3}\right)$

$I(3;1)$

$I(4;-2)$

$\vec{c} = (3;3)$

$\vec{c} = (2;7)$

$\vec{c} = (2;1)$

$\vec{c} = (6;3)$

$\dfrac{\sqrt{10}}{10}$

$\dfrac{3}{10}$

$\dfrac{3}{5}$

$\dfrac{3\sqrt{10}}{10}$