8+ Đề cương ôn tập Toán 10 Giữa kì 1 năm 2026 (có lời giải)

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

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

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

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

\{x,y\}

$\{x;\emptyset\}$

\{x\}

$\{x;y;\emptyset\}$

$A\left(1;2\right)$

$B\left(2;1\right)$

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

$D\left(3;1\right)$

$\left\{\begin{array}{l}y \ge 0 \\ 5x^{2}+4y \le 10\end{array}\right.$

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

$\left\{\begin{array}{l}4x-5y \le 10 \\ 5x+4y^{2} \le 10\end{array}\right.$

$\left\{\begin{array}{l}x \ge 0 \\ 10x+5y < 10\end{array}\right.$

$\overrightarrow{0}$

$\overrightarrow{AC}$

$\overrightarrow{BD}$

$\overrightarrow{BA}$

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

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

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

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

$f(1) = 4$

$f(2) = 6$

$f(3) = 11$

$f(4) = 20$

$D = \mathbb{R}\backslash \{3\}$

$D = \mathbb{R}\backslash \{0\}$

$D = \mathbb{R}$

$D = \mathbb{Z}$