Đề thi Giữa kì 1 Toán 9 năm 2024-2025 trường THCS Đông Hưng B (Kiên Giang)

$2x - 3y = 5$

$x^2 + 2x - 1 = 0$

$2x^3 - 3 = 0$

$\dfrac{2}{x} - x = 6$

$\left\{ \begin{array}{l} x + y^2 = 3 \\ -3x = 18. \end{array}\right.$

$\left\{ \begin{array}{l} -4x + 7y = -10 \\ 3x + 8y = -19. \end{array}\right.$

$\left\{ \begin{array}{l} x - y = 1 \\ x - 2y^2 = 0. \end{array}\right.$

$\left\{ \begin{array}{l} x + 3y = 2 \\ 31x^2 + 5y^2 = -1. \end{array}\right.$

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

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

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

$\left(1;2\right)$

$-2x^2 + 5 > 0$

$3x - y \leq 0$

$5 + 0x \geq -7$

$-4x - 2 < 0$

$2a > 2b$

$-a < -b$

$a - 2 < b - 2$

$a - b > 0$

$\widehat{C} = 35^0$

$\widehat{C} = 40^0$

$\widehat{C} = 45^0$

$\widehat{C} = 50^0$

$\dfrac{5}{13}$

$\dfrac{13}{5}$

$\dfrac{12}{5}$

$\dfrac{5}{12}$

$\sin 50^0$

$cos 50^0$

$\tan 50^0$

$\cot 50^0$

0

3

2

1