Đề cương ôn tập Học kì 2 Toán 10 trường THPT Quế Sơn (Đà Nẵng) năm 2025-2026

$y=\sqrt{x-1}.$

$y=\dfrac{1}{x}$

$y=\sqrt{x^{2}-1}.$

$y=x-1.$

$\mathbb{R}.$

$(1; + \infty).$

$[0; + \infty).$

$[1; + \infty)$

$x^2 + y^2 - 2x - 4y - 20 = 0$

$x^2 + y^2 + 2x + 4y + 20 = 0$

$x^2 + y^2 + 2x + 4y - 20 = 0$

$x^2 + y^2 - 2x - 4y + 20 = 0$

$\dfrac{x^2}{4} + \dfrac{y^2}{2} = 1$

$\dfrac{x^2}{4} - \dfrac{y^2}{2} = 1$

$\dfrac{x^2}{2} + \dfrac{y^2}{4} = 1$

$y^2 = x$

30

11

5

6

$A_n^k = \dfrac{n!}{(n-k)!}$

$A_n^k = \dfrac{n!}{(n-k)!k!}$

$C_n^k = \dfrac{n!}{(n-k)! k!}$

$C_n^k = \dfrac{n!}{(n-k)!}$

$A_n^k = \dfrac{n!}{(n-k)!}$

$A_n^k = \dfrac{n!}{(n-k)!k!}$

$C_n^k = \dfrac{n!}{(n-k)! k!}$

$C_n^k = \dfrac{n!}{(n-k)!}$

32760

50625

60

1365

6

3

5

4