Bộ 10 Đề kiểm tra giữa kì 2 Toán 10 có đáp án (Mới nhất) (Đề 8)

m = 2.

m = 3.

m = 4.

m = 1.

$M\left(0;\frac{1}{2}\right)$.

$M\left(0;-\frac{1}{2}\right)$.

$M\left(2;-\frac{11}{2}\right)$.

$M\left(0;\frac{11}{2}\right)$.

$\left|a+b\right|\le \left|a\right|+\left|b\right|$.

$\left|x\right|<a\iff -a<x<a(a>0)$.

$a>b\iff ac>bc,\left(\forall c\in ℝ\right)$.

$a+b\ge 2\sqrt{ab},\left(a\ge \mathrm{0,}b\ge 0\right)$.

$a+c>b+d$.

$a-c>b-d$.

ac > bd.

$a^2>b^2$.

$a>b\iff a-b>0$.

$a>b>0\Rightarrow \frac{1}{a}<\frac{1}{b}$.

$a>b\iff a^3>b^3$.

$a>b\iff a^2>b^2$.

$\frac{a+b}{2}\ge 2\sqrt{a+b}$.

$\frac{a-b}{2}\ge 2\sqrt{ab}$.

$\frac{a+b}{2}\ge \sqrt{ab}$.

$\frac{a+b}{2}\ge 2\sqrt{ab}$.

$x\ne -1;x\ne 2$.

$x\ne -1;x\ne -2$.

$x\ne 1;x\ne -2$.

$x\ne 1;x\ne 2$.

2.

5.

4.

6.

$S=\left(-\infty ;-2\right]\cup \left[4;+\infty \right)$.

$S=\left[-2;4\right]$.

$S=\left[2;4\right]$.

$S=\left(-\infty ;-2\right)\cup \left(4;+\infty \right)$.

21.

9.

20.

10.

$\sqrt{x+3}<x$.

$\left|1+x\right|\le 1$.

$\left(x-1\right)\left(x+2\right)>0$.

$\left|x\right|<2$.

$m\in \left(0;1\right)$.

$m\in \left[0;1\right)$.

$m\in \left[0;1\right]$.

$m\in \left(0;1\right]$.

$f\left(x\right)=x-2$.

$f\left(x\right)=2-4x$.

$f\left(x\right)=16-8x$.

$f\left(x\right)=-x-2$.

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

$\left(-\infty ;-2\right)$.

$\left(-\frac{2}{3};1\right)$.

$\left(-\frac{1}{2};1\right)$.

$\varnothing$.

$\left(-\infty ;-1\right)\cup \left(1;+\infty \right)$.

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

$ℝ$.

$a{x}^2+bx+c>0$.

$a{x}^2+b{y}^2\le c$.

$ax+by\le c$.

$ax+by=c$.

$M\left(1;1\right)$.

$O\left(\text{0\hspace{0.17em}};\text{\hspace{0.17em}0}\right)$.

$P(4;2)$.

$N\left(1;-1\right)$.

$\frac{a}{\sin A}=2R$.

$a^2=b^2+c^2+2bc\cos \hat{A}$.

$S=\frac{abc}{4R}$.

$m_a^2=\frac{b^2+c^2}{2}-\frac{a^2}{4}$.

$2x+y-6>0$.

$2x+y-6<0$.

$x+2y-6<0$.

$x+2y-6>0$.

$\{\begin{array}{c}x=1+2t\\ y=1+3t\end{array}$.

$\{\begin{array}{c}x=1-2t\\ y=2+3t\end{array}$.

$\{\begin{array}{c}x=1+3t\\ y=2+2t\end{array}$.

$\{\begin{array}{c}x=1+2t\\ y=2-3t\end{array}$.

$\{\begin{array}{c}a<0\\ \Delta \ge 0\end{array}$.

$\{\begin{array}{c}a<0\\ \Delta \le 0\end{array}$.

$\{\begin{array}{c}a<0\\ \Delta >0\end{array}$.

$\{\begin{array}{c}a<0\\ \Delta <0\end{array}$.

$f\left(x\right)>0,\forall x\in ℝ$.

$f\left(x\right)>0,\forall x\ne 2$.

$f\left(x\right)>0,\forall x\ne 4$.

$f\left(x\right)<0,\forall x\in ℝ$

7 cm.

6 cm.

4 cm.

5 cm.

$x^2-2x+1$.

$x^2+2x+1$.

$x^2+x+1$.

$x^2+x-1$.

$f\left(x\right)>0,\forall x\in \left(-1;+\infty \right)$.

$f\left(x\right)<0,\forall x\in \left(-1;+\infty \right)$.

$f\left(x\right)>0,\forall x\in \left(-\infty ;1\right)$.

$f\left(x\right)<0,\forall x\in \left(-\infty ;1\right)$.

a > 0, b < 0, c > 0.

a < 0, b < 0, c > 0.

a > 0, b > 0, c > 0.

a > 0, b < 0, c < 0.

$S=\left(-3;-2\right]\cup \left[0;1\right)$.

$S=\left(1;3\right)$.

$S=\left(-3;-2\right)\cup \left(0;1\right)$.

$S=\left(-1;0\right]\cup \left[2;3\right)$.

56,8 km.

70 km.

35 km.

113,6 km.

${\Delta }_1$ và ${\Delta }_2$ trùng nhau.

${\Delta }_1$ và ${\Delta }_2$ vuông góc với nhau.

${\Delta }_1$ và ${\Delta }_2$ cắt nhau nhưng không vuông góc.

${\Delta }_1$ và ${\Delta }_2$ song song với nhau.

$\hat{A}=45°$.

$\hat{A}=30°$.

$\hat{A}=120°$.

$\hat{A}=90°$.

R = $3\sqrt{3}$.

R = 6.

R = $\sqrt{3}$.

R = 3.

${\overrightarrow{u}}_1=\left(-3;1\right)$.

${\overrightarrow{u}}_2=\left(1;-3\right)$.

${\overrightarrow{u}}_3=\left(-1;3\right)$.

${\overrightarrow{u}}_4=\left(3;1\right)$.

$\frac{4}{5}$.

$\frac{2}{\sqrt{5}}$.

1.

$\frac{1}{\sqrt{3}}$.

$x-y+3=0$.

$2x+3y-7=0$.

$3x-2y-4=0$.

$4x+6y-11=0$.

$H\left(-5;0\right)$.

$H\left(-11;-2\right)$.

$H\left(0;-5\right)$.

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

$t=\frac{3}{2}.$

$t=\frac{1}{2}.$

$t=-\frac{1}{2}.$

t = 2.

60.

30.

34.

$7\sqrt{5}$.

0 ≤ m ≤ 1

m ≤ 0 hoặc m ≥ 1

m < 0 hoặc m ≥ 1

0 < m < 1

$\left(1;+\infty \right)$

$\left(-\infty ;\frac{3}{4}\right)\cup \left(3;+\infty \right)$

$\left(\frac{3}{4};1\right)$

$\left(\frac{3}{4};+\infty \right)\backslash \left\{1\right\}$