Đề cương ôn tập Giữa kì 1 Toán 10 trường THPT Sơn Động số 3 năm 2026-2026

$\forall x \in \mathbb{R} : x^2 + x + 2018 < 0$.

$\forall x \in \mathbb{R} : x^2 + x + 2018 \leq 0$.

$\exists x \in \mathbb{R} : x^2 + x + 2018 < 0$.

$\exists x \in \mathbb{R} : x^2 + x + 2018 \leq 0$.

\{x,y\} .

$\{x; \varnothing\}$.

\{x\} .

$\{x; y; \varnothing\}$.

A(1; 2) .

B(2; 1) .

$C\left( 1 ; \dfrac{1}{2} \right)$.

D(3;1) .

$\left\{\begin{matrix} y \geq 0 \\ 5x^{2} + 4y \leq 10 \end{matrix}\right.$

$\left\{\begin{matrix} 5x - 4y = 10 \\ 4x + 5y = 10 \end{matrix}\right.$

$\left\{\begin{matrix} 4x - 5y \leq 10 \\ 5x + 4y^{2} \leq 10 \end{matrix}\right.$

$\left\{\begin{matrix} x \geq 0 \\ 10x + 5y < 10 \end{matrix}\right.$

$\overrightarrow{0}$.

$\overrightarrow{AC}$.

$\overrightarrow{BD}$.

$\overrightarrow{BA}$.

$\overrightarrow{IA} + \overrightarrow{DC} = \overrightarrow{IB}$.

$\overrightarrow{AB} + \overrightarrow{AD} = \overrightarrow{BD}$.

$\overrightarrow{IA} + \overrightarrow{BC} = \overrightarrow{IB}$.

$\overrightarrow{AB} + \overrightarrow{IA} = \overrightarrow{BI}$.

$f(1) = 4$.

$f(2) = 6$.

$f(3) = 11$.

$f(4) = 20$.

$D = \mathbb{R} \setminus \{3\}$.

$D = \mathbb{R} \setminus \{0\}$.

$D = \mathbb{R}$.

$D = \mathbb{Z}$.