Đề thi Học kì 2 Toán 10 năm 2025-2026 trường THPT Lê Quý Đôn (Quảng Ngãi)

$d(M,\Delta) = \dfrac{ax_0 + by_0 + c}{\sqrt{a^2 + b^2}}.$

$d(M,\Delta) = \dfrac{|ax_0 + by_0 + c|}{a^2 + b^2}.$

$d(M,\Delta) = \sqrt{a^2 + b^2}.$

$d(M,\Delta) = \dfrac{|ax_0 + by_0 + c|}{\sqrt{a^2 + b^2}}.$

$I(-3; 1).$

$I(3; -1).$

$I(3; 1).$

$I(-3; -1).$

15.

8.

5.

3.

$C_n^5 = \dfrac{n!}{(n-5)!}$.

$C_n^5 = \dfrac{n!}{5!(5-n)!}$.

$C_n^5 = \dfrac{n!}{5!(n-5)!}$.

$C_n^5 = \dfrac{n!}{(5-n)!}$.

$(x+1)^4 = x^4 + 1^4$.

$(x+1)^4 = x^4 - 4x^3 + 6x^2 - 4x + 1$.

$(x+1)^4 = x^4 + 4x^3 + 6x^2 + 4x + 1$.

$(x+1)^4 = x^4 + 4x^3 + 6x^2 + 6x + 1$

2.

4.

6.

8.

$P(\overline{A}) = 1 + P(A)$.

$P(\overline{A}) = 1 - P(A)$.

$P(\overline{A}) = P(A)$.

$P(\overline{A}) = \dfrac{1}{P(A)}$.