Đề thi học kỳ 1 Toán 9 năm 2023 — Trường THCS Phan Bội Châu, Quảng Nam

$\displaystyle 3$

$\displaystyle -2$

$\displaystyle \pm 3$

$\displaystyle 9$

$\displaystyle x \ge -5;$

$\displaystyle x > -5;$

$\displaystyle x \le 5;$

$\displaystyle x < 5$

$\displaystyle -1$

$\displaystyle 0$

$\displaystyle \pm 1$

$\displaystyle 1$

$\displaystyle y = -2x$

$\displaystyle y = -x + 3$

$\displaystyle y = -1 + 2x$

$\displaystyle y = x + 5$

$\displaystyle y = 1 - 3x$

$\displaystyle y = 5x - 1$

$\displaystyle y = (2 - \sqrt{3})x - \sqrt{5}$

$\displaystyle y = -\sqrt{7} + \sqrt{2}x$

$\displaystyle 3$

$\displaystyle -x$

$\displaystyle -1$

$\displaystyle 0$

$\displaystyle 2\sqrt{2}\text{cm}$

$\displaystyle 3\sqrt{2}\text{ cm}$

$\displaystyle 2\text{ cm}$

$\displaystyle \sqrt{2}\text{cm}$

$\displaystyle \sin \alpha = \cos \beta$

$\displaystyle \cot \alpha = \tan \beta$

$\displaystyle \sin^{2} \alpha + \cos^{2} \beta = 1$

$\displaystyle \tan \alpha = \cos \beta$

$\displaystyle \dfrac{4}{3}$

$\displaystyle \dfrac{3}{4}$

$\displaystyle \dfrac{4}{5}$

$\displaystyle \dfrac{5}{4}$

$\displaystyle 4,2\text{ cm}$

$\displaystyle 2,4\text{ cm}$

$\displaystyle 0,8\text{ cm}$

$\displaystyle 3,4\text{ cm}$

$\displaystyle d < 6\text{ cm}$

$\displaystyle d = 6\text{cm}$

$\displaystyle d > 6\text{cm}$

$\displaystyle d \ge 6\text{cm}$

$\displaystyle 4\text{cm}$

$\displaystyle 4,5\text{ cm}$

$\displaystyle 3\text{ cm}$

$\displaystyle 8\text{ cm}$