Đề ôn tập Chương 4 Đại số lớp 10 năm 2021 Trường T...

A. \(x\in \left( -1;-\dfrac{1}{\sqrt{3}} \right). \)

B. \(\left( -\dfrac{1}{\sqrt{3}};+\infty\right).\)

C. \(\left( -\infty ;-1 \right).\)

D. \(\left( -1;+\infty\right). \)

A. \(m\in \left( -2;1 \right).\)

B. \(m\in \left[ -2;1 \right].\)

C. \(m\in \left( -\infty ;-2 \right)\cup \left( 1;+\infty\right). \)

D. \(m\in \left( -2;1 \right)\backslash \left\{ -1 \right\}.\)

A. \(x\in \left( -\infty ;2 \right).\)

B. \(\left( 3;+\infty\right).\)

C. \(x\in \left( 2;+\infty\right).\)

D. \(x\in \left( 2;3 \right).\)

A. \(\left( -\dfrac{5}{2};-1 \right)\) và \(\left( 1;2 \right). \)

B. \(\left[ -\dfrac{5}{2};-1 \right)\) và \(\left( 2;+\infty\right). \)

C. \(\left( -\infty ;\dfrac{5}{2} \right]\) và \(\left[ 1,2 \right). \)

D. \(\left( -\infty ;\dfrac{5}{2} \right]\); \(\left( -1;1 \right]\) và \(\left( 2;+\infty\right). \)

A. 0

B. 2

C. 3

D. 1

A. 0

B. 3

C. 7

D. 10

A. m < 9

B. m > 9

C. \(m\ge 9\)

D. \(m\in \varnothing . \)

A. 0

B. 1

C. 2

D. 3

A. \(y={{x}^{2}}+2x-3.\)

B. \(y=-{{x}^{2}}-2x+3.\)

C. \(y={{x}^{2}}-4x+3\)

D. \(y=-{{x}^{2}}+4x-3.\)

A.

B.

C.

D.

A. \(x\in \left( -1;3 \right).\)

B. \(x\in \left( -\infty ;3 \right). \)

C. \(x\in \mathbb{R}. \)

D. \(\left( -1;+\infty\right). \)

A. \(x\in \left( -\infty ;-2 \right)\cup \left( -1;1 \right)\cup \left( 2;+\infty\right)\)

B. \(x\in \left( -2;-1 \right)\cup \left( 1;2 \right). \)

C. \(x\in \left( -\infty ;-2 \right]\cup \left[ -1;1 \right]\cup \left[ 2;+\infty\right)\)

D. \(x\in \left[ -2;-1 \right]\cup \left[ 1;2 \right]. \)

A. \(D=\mathbb{R}.\)

B. \(D=\mathbb{R}\backslash \left[ -4;-1 \right].\)

C. \(D=\mathbb{R}\backslash \left( -4;-1 \right). \)

D. \(\text{D}=\left[ -4;-1 \right].\)

A. \(m\in \mathbb{R}.\)

B. m > 1

C. \(-\dfrac{3}{4}

D. \(m>-\dfrac{3}{4}. \)

A. \(x\in \left( -\infty ;\dfrac{5}{4} \right).\)

B. \(x\in \left( -\infty ;\dfrac{1}{3} \right)\cup \left( \dfrac{5}{4};3 \right).\)

C. \(x\in \left( \dfrac{1}{3};\dfrac{5}{4} \right)\cup \left( 3;+\infty\right)\)

D. \(x\in \left( \dfrac{1}{3};3 \right). \)

A. \(x\in \left( -\infty ;-2 \right)\cup \left( 0;\dfrac{1}{3} \right)\cup \left( 2;+\infty\right). \)

B. \(x\in \left( -\infty ;0 \right)\cup \left( \dfrac{1}{3};+\infty\right).\)

C. \(x\in \left( -2;0 \right)\cup \left( \dfrac{1}{3};2 \right).\)

D. \(x\in \left( -2;2 \right).\)

A. \(m\in \varnothing\)

B. \(m\in \left( -1;1 \right). \)

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

D. \(m\in \mathbb{R}.\)

A. \(x\in \left( -\sqrt{5};1 \right).\)

B. \(x\in \left( -\sqrt{5};+\infty\right).\)

C. \(x\in \left( -\infty ;-\sqrt{5} \right)\cup \left( 1;+\infty\right).\)

D. \(x\in \left( -\infty ;1 \right).\)

A. \(x\in \left( -\infty ;1 \right)\cup \left( 2;+\infty\right).\)

B. \(x\in \left[ 1;2 \right].\)

C. \(x\in \left( -\infty ;1 \right]\cup \left[ 2;+\infty\right).\)

D. \(x\in \left( 1;2 \right).\)

A. \(m\in \left( -6;1 \right). \)

B. \(m\in \left( -\infty ;-6 \right)\cup \left( 1;+\infty\right).\)

C. \(m\in \left( -6;1 \right)\backslash \left\{ 0 \right\}.\)

D. \(m\in \mathbb{R}\backslash \left\{ 2 \right\}.\)

A. \(x<\dfrac{-5}{2}.\)

B. \(\dfrac{-5}{2}\le x\le 1.\)

C. \(\dfrac{-5}{2}

D. \(\dfrac{-5}{2}\le x<1.\)

A. \(x<\dfrac{10}{3}.\)

B. \(x>\dfrac{10}{3}.\)

C. \(\dfrac{7}{5}

D. \(x<\dfrac{7}{5}.\)

A. \(f(x)=2{{x}^{2}}+x+1.\)

B. \(f(x)=2mx+5.\)

C. \(f(x)=2.\)

D. \(f(x)=3x-5.\)

A. m = 3

B. m < 3

C. m > 3

D. \(m<\dfrac{1}{3}\)

A. \(x<\dfrac{-3}{2}.\)

B. \(x<\dfrac{-2}{3}.\)

C. \(x>\dfrac{-3}{2}.\)

D. \(x>\dfrac{-2}{3}.\)

A. x > 3

B. -1 < x < 3

C. \(x<-2\vee x>3\)

D. x < -1

A. \(\dfrac{1}{5}

B. \(\dfrac{1}{5}\le x\le \dfrac{2}{3}.\)

C. \(x\le \dfrac{1}{5}\vee x\ge \dfrac{2}{3}.\)

D. \(x\le \dfrac{1}{5}\vee x\ge \dfrac{2}{3}.\)

A. m < 2

B. m = 2

C. m > 2

D. \(m=\pm 2\)

A. \(1\le x\le 3. \)

B. \(-1\le x\le 1.\)

C. \(1\le x\le 2.\)

D. \(-1\le x\le 2.\)

A. m > 2

B. m < 2

C. \(m\ne 2\,\,\text{v }\!\!\grave{\mathrm{a}}\!\!\text{ }\,\,\text{m}\ne \text{5}\text{. }\)

D. \(m\ne 2.\)

A. \(\begin{aligned} &b \in[-2 \sqrt{3} ; 2 \sqrt{3}] \end{aligned}\)

B. \(b \in(-2 \sqrt{3} ; 2 \sqrt{3})\)

C. \(b \in(-\infty ;-2 \sqrt{3}] \cup[2 \sqrt{3} ;+\infty)\)

D. \(b \in(-\infty ;-2 \sqrt{3}) \cup(2 \sqrt{3} ;+\infty)\)

A. \(m<0\)

B. \(m>2\)

C. \(\left[\begin{array}{l}m>3 \\ m<1\end{array}\right.\)

D. \(\left\{\begin{array}{l}m \neq 2 \\ 1

A. \(\begin{aligned} &m>1 \end{aligned}\)

B. \(-3

C. \(m \leq-3 \text { hoặc } m \geq 1\)

D. \(-3 \leq m \leq 1\)

A. \(0

B. \(-4

C. \(0

D. \(0 \leq m \leq 16\)

A. \(m \in \mathbb{R} \backslash\{3\}\)

B. \(m \in\left(-\infty ;-\frac{3}{5}\right) \cup(1 ;+\infty) \backslash\{3\}\)

C. \(m \in\left(-\frac{3}{5} ; 1\right)\)

D. \(m \in\left(-\frac{3}{5} ;+\infty\right)\)

A. \((-1 ; 2)\)

B. \((-\infty ;-1) \cup(2 ;+\infty)\)

C. \([-1 ; 2]\)

D. \((-\infty ;-1] \cup[2 ;+\infty)\)

A. \(\begin{aligned} &-4 \leq m \leq 4 \end{aligned}\)

B. \(m \leq-4 \text { hay } m \geq 4.\)

C. \(m \leq-2 \text { hay } m \geq 2 .\)

D. \(-2 \leq m \leq 2\)

A. 3

B. -1

C. 0

D. -3

A. \(-5

B. \(x<1\)

C. \(x>-5\)

D. \(x<-5\)

A. \((1 ; 3)\)

B. \((-2 ; 5)\)

C. \((-2 ; 1) \cup(3 ; 5)\)

D. \((3 ; 5)\)