Đề thi thử THPT QG năm 2019 môn Toán Trường THPT Chuyên Quang Trung - Bình Phước lần 3

A. - 1

B. - 2

C. 1

D. 0

A. (-1;0)

B. (-1;1)

C. \(\left( { - 1; + \infty } \right)\)

D. (0;1)

A. \(y = {x^3} - 3x + 1\)

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

C. \(y =  - {x^3} + 3x + 1\)

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

A. 2

B. 1

C. 3

D. 5

A. \(\ln a + \ln b - \ln \left( {a + 1} \right)\)

B. \(\ln a + 2\ln b + \ln \left( {a + 1} \right)\)

C. \(\ln a + 2\ln b - \ln \left( {a + 1} \right)\)

D. \(2\ln b\)

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

B. {0}

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

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

A. 2

B. 4

C. 3

D. 1

A. 6

B. 10

C. 18

D. 0

A. \(F\left( x \right) = \frac{{{e^{2x}}}}{2} + \frac{{{x^3}}}{3} + C\)

B. \(F\left( x \right) = {e^{2x}} + {x^3} + C\)

C. \(F\left( x \right) = 2{e^{2x}} + 2x + C\)

D. \(F\left( x \right) = {e^{2x}} + \frac{{{x^3}}}{3} + C\)

A. 19

B. \(\sqrt {19} \)

C. \(\sqrt {13} \)

D. 13

A. x = 0

B. y = 0

C. x + y = 0 

D. z = 0

A. \(\left( {2;1;3} \right)\)

B. \(\left( {3;1;2} \right)\)

C. \(\left( {3;1;3} \right)\)

D. \(\left( {3;2;3} \right)\)

A. \(6{a^3}\)

B. \(3{a^3}\)

C. \({a^3}\)

D. \(2{a^3}\)

A. 10

B. \(400{a^3}{b^2}\)

C. \(10{a^3}{b^2}\)

D. 40

A. \(\left( {1; + \infty } \right)\)

B. \(\left( { - \infty ; - 1} \right) \cup \left( {1; + \infty } \right)\)

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

D. (-1;1)

A. \(\frac{{\pi {a^3}\sqrt 2 }}{3}\)

B. \(\frac{{\pi {a^3}}}{3}\)

C. \(\frac{{\pi {a^3}\sqrt 3 }}{3}\)

D. \(\frac{{\pi {a^3}}}{{3\sqrt 3 }}\)

A. \({\left( {x - 1} \right)^2} + {y^2} + {\left( {z - 1} \right)^2} = 4\)

B. \({\left( {x - 2} \right)^2} + {\left( {y - 2} \right)^2} + {\left( {z - 2} \right)^2} = 2\)

C. \({\left( {x - 2} \right)^2} + {\left( {y - 2} \right)^2} + {\left( {z - 2} \right)^2} = 4\)

D. \({x^2} + {y^2} + {z^2} = 2\)

A. \(1 < x < 3\)

B. \( - 1 < x < 3\)

C. \(x <  - 3;x > 1\)

D. \( - 3 < x < 1\)

A. \(y' = \left( {1 + x} \right){e^{x + 1}}\)

B. \(y' = \left( {1 - x} \right){e^{x + 1}}\)

C. \(y' = {e^{x + 1}}\)

D. \(y' = x{e^x}\)

A. \(\frac{1}{{2a}} + \frac{1}{4}\)

B. \(\frac{1}{2}a + \frac{1}{4}\)

C. \(\frac{{a + 1}}{4}\)

D. \(\frac{{a + 2}}{{4a}}\)

A. \({a^3}\)

B. \(6{a^3}\)

C. \(\frac{{\sqrt 2 }}{{12}}{a^3}\)

D. \(\frac{1}{{12}}{a^3}\)

A. - 1

B. 1

C. 0

D. 3

A. 3

B. 2

C. 1

D. 0

A. \(m \ge 0\)

B. \(m < \frac{1}{2}\)

C. \(m \ge \frac{1}{2}\)

D. \(m = \frac{1}{2}\)

A. \(y' = \frac{{3{x^2} - 1}}{{\left( {{x^3} - x} \right)}}\)

B. \(y' = \frac{{3{x^2} - 1}}{{\left( {{x^3} - x} \right)\ln 3}}\)

C. \(y' = \frac{1}{{\left( {{x^3} - x} \right)\ln 3}}\)

D. \(y' = \frac{{3x - 1}}{{\left( {{x^3} - x} \right)\ln 3}}\)

A. 701,12.

B. 701.

C. 701,19.

D. 701,47.

A. \(F\left( x \right) =  - \cos x + \ln x + C\)

B. \(F\left( x \right) =  - \cos x + \frac{{{x^2}}}{2}\ln x - \frac{{{x^2}}}{4} + C\)

C. \(F\left( x \right) = \cos x + \frac{{{x^2}}}{2}\ln x - \frac{{{x^2}}}{4} + C\)

D. \(F\left( x \right) =  - \cos x + C\)

A. \(\frac{1}{{12}}\)

B. \(\frac{5}{{12}}\)

C. \( - \frac{1}{3}\)

D. \(\frac{1}{4}\)

A. \(x + 2y + 2z + 3 = 0;x + 2y + 2z - 17 = 0\)

B. \(x + 2y + 2z + 3 = 0;x + 2y + 2z + 17 = 0\)

C. \(x + 2y + 2z - 3 = 0;x + 2y + 2z - 17 = 0\)

D. \(x + 2y + 2z - 3 = 0;x + 2y + 2z + 17 = 0\)

A. \(0,34\pi\)

B. \(0,16\pi\)

C. \(0,32\pi\)

D. \(0,4\pi\)

A. \({2.5^7}\)

B. \({2.5^6}\)

C. \({2.5^8}\)

D. \({2.5^5}\)

A. \(60^0\)

B. \(30^0\)

C. \(45^0\)

D. \(90^0\)

A. m < 0

B. \(m \in R\)

C. Không tồn tại m.

D. m > 0

A. [0;4]

B. \(\left\{ 0 \right\} \cup \left( {4; + \infty } \right)\)

C. \(\left[ {4; + \infty } \right)\)

D. {0;4}

A. \(m \le 2\)

B. \(m \le  - \frac{1}{4}\)

C. \(m \le 6\)

D. \(m \le 1\)

A. \(m<2\)

B. \(m \in R\)

C. \(m \le 2\)

D. Không tồn tại m

A. \(I = \int\limits_{ - 1}^2 {\left[ {g\left( x \right) - f\left( x \right)} \right]dx} \)

B. \(I = \int\limits_{ - 1}^2 {\left[ {f\left( x \right) + g\left( x \right)} \right]} dx\)

C. \(I = \int\limits_{ - 1}^2 {\left[ {f\left( x \right) - g\left( x \right)} \right]} dx\)

D. \(I = \int\limits_{ - 1}^2 {\left[ {\left| {f\left( x \right)} \right| - \left| {g\left( x \right)} \right|} \right]} dx\)

A. \(m \ge 2\)

B. \(m \in R\)

C. \(m=0\)

D. \(m \ge 2;m \le  - 2\)

A. \(\ln \left| {\frac{{{e^x} - 1}}{{{e^x} + 2}}} \right| + C\)

B. \(\ln \left( {{e^x} - 2{e^{ - x}} + 1} \right) + C\)

C. \(\frac{1}{3}\ln \frac{{{e^x} - 1}}{{{e^x} + 2}} + C\)

D. \(\frac{1}{3}\ln \left| {\frac{{{e^x} - 1}}{{{e^x} + 2}}} \right| + C\)

A. \(\frac{{x + 1}}{1} = \frac{{y + 1}}{{ - 2}} = \frac{{z + 1}}{7}\)

B. \(\frac{{x - 1}}{1} = \frac{{y - 1}}{{ - 2}} = \frac{{z - 1}}{7}\)

C. \(\frac{{x - 1}}{1} = \frac{{y - 1}}{2} = \frac{{z - 1}}{7}\)

D. \(\frac{{x + 1}}{1} = \frac{{y + 1}}{2} = \frac{{z + 1}}{7}\)

A. \(\frac{{\sqrt 2 }}{2}a\)

B. \(\frac{{2\sqrt {21} }}{7}a\)

C. \(\frac{{\sqrt {21} }}{7}a\)

D. \(\frac{{\sqrt {21} }}{{14}}a\)

A. \(\frac{2}{3}V\)

B. \(\frac{1}{3}V\)

C. \(\frac{1}{2}V\)

D. \(\frac{3}{4}V\)

A. \(\frac{{8\pi {R^3}\sqrt 3 }}{3}\)

B. \(\frac{{4\pi {R^3}\sqrt 3 }}{9}\)

C. \(\frac{{8\pi {R^3}}}{{27}}\)

D. \(\frac{{8\pi {R^3}\sqrt 3 }}{9}\)

A. \(m \le 0\)

B. \(m<0\)

C. \(m \ge 0\)

D. \(m>0\)

A. \(\left( {\frac{4}{9};\frac{2}{9};\frac{4}{9}} \right)\)

B. (2;1;2)

C. (4;2;4)

D. \(\left( {\frac{2}{9};\frac{1}{9};\frac{2}{9}} \right)\)

A. \(m < \frac{{f\left( 1 \right) + 9}}{{36}}\)

B. \(m \le \frac{{f\left( 0 \right)}}{{36}} + \frac{1}{{\sqrt 3  + 2}}\)

C. \(m \le \frac{{f\left( 1 \right) + 9}}{{36}}\)

D. \(m < \frac{{f\left( 0 \right)}}{{36}} + \frac{1}{{\sqrt 3  + 2}}\)

A. (-1;0)

B. (-6;-3)

C. (3;6)

D. \(\left( {6; + \infty } \right)\)

A. 8

B. 0

C. 10

D. 12

A. 0

B. \(\frac{2}{3}\)

C. \(\frac{4}{3}\)

D. \(\sqrt 2 \)

A. \(\frac{1}{{252}}\)

B. \(\frac{1}{{63}}\)

C. \(\frac{1}{{192}}\)

D. \(\frac{1}{{126}}\)