A. \(\left( { - 27; + \infty } \right)\)
B. \(\left( { - \infty ;5} \right)\)
C. \(\left( { - \infty ; - 1} \right)\)
D. \(\left( { - 1; + \infty } \right)\)
A. \(S = \left[ {\dfrac{5}{2}; + \infty } \right)\)
B. \(S = \left( { - \infty ;\dfrac{5}{2}} \right]\)
C. \(S = \left( { - \infty ;\dfrac{1}{2}} \right]\)
D. \(S = \left[ {\dfrac{1}{2}; + \infty } \right)\)
A. \(4{a^3}\)
B. \(12{a^3}\)
C. \({a^3}\)
D. \(3{a^3}\)
A. \({S_{tp}} = \pi Rl + 2\pi {R^2}\)
B. \({S_{tp}} = 2\pi Rl + 2\pi {R^2}\)
C. \({S_{tp}} = 2\pi Rl + \pi {R^2}\)
D. \(\pi Rl + \pi {R^2}\)
A. \(\mathbb{R}\)
B. \(\mathbb{R}\backslash \left\{ 2 \right\}\)
C. \(\left( { - 2; + \infty } \right)\)
D. \(\left( {2; + \infty } \right)\)
A. \( - {x^3} + 3{x^2} + 1\)
B. \(y = {x^3} + 3{x^2} + 1\)
C. \(y = {x^4} - {x^2} + 1\)
D. \(y = - {x^4} + 2{x^2} + 1\)
A. \(\dfrac{2}{3}\)
B. \(\dfrac{8}{3}\)
C. \(\dfrac{3}{8}\)
D. \(\dfrac{3}{2}\)
A. \(x = 1\)
B. \(y = 1\)
C. \(x = - 2\)
D. \(y = - 2\)
A. \({a^{\dfrac{4}{{15}}}}\)
B. \({a^{\dfrac{{16}}{{15}}}}\)
C. \({a^{\dfrac{5}{3}}}\)
D. \({a^{\dfrac{1}{2}}}\)
A. \(\left( {0;1} \right)\)
B. \(\left( { - 1;0} \right)\)
C. \(\left( { - 1;1} \right)\)
D. \(\left( { - \infty ;1} \right)\)
A. 1
B. 3
C. 2
D. 0
A. \({S_{xq}} = \pi Rl\)
B. \({S_{xq}} = 2\pi Rl\)
C. \({S_{xq}} = \pi Rh\)
D. \({S_{xq}} = 4\pi Rl\)
A. \(S = \left\{ 1 \right\}\)
B. \(S = \left\{ 2 \right\}\)
C. \(S = \left\{ 0 \right\}\)
D. \(S = \left\{ 3 \right\}\)
A. \(y = - {x^4} + 4{x^2} + 1\)
B. \(y = {x^3} + 3x + 1\)
C. \(y = - {x^3} + 2{x^2} + 1\)
D. \(y = {x^4} - 4{x^2} + 1\)
A. \({x_1} + {x_2} = 0\)
B. \({x_1} + 2{x_2} = 3\)
C. \({x_1}{x_2} = 1\)
D. \(2{x_1} - {x_2} = 3\)
A. \(\dfrac{{500\pi \sqrt 5 }}{3}\left( {c{m^3}} \right)\)
B. \(\dfrac{{250\pi \sqrt 2 }}{3}\left( {c{m^3}} \right)\)
C. \(250\pi \sqrt 2 \left( {c{m^3}} \right)\)
D. \(500\pi \sqrt 5 \left( {c{m^3}} \right)\)
A. \(2\)
B. \(3\)
C. \(4\)
D. \(1\)
A. \(7.815.170\left( {{m^3}} \right)\)
B. \(2.605.057\left( {{m^3}} \right)\)
C. \(3.684.107\left( {{m^3}} \right)\)
D. \(11.052.320\left( {{m^3}} \right)\)
A. \(\dfrac{{ - 6}}{5}\)
B. \( - 3\)
C. \(\dfrac{5}{2}\)
D. \( - 2\)
A. \({\log _a}{a^b} = b\)
B. \({\log _{\dfrac{1}{a}}}a = - 1\)
C. \({\log _a}{b^4} = 4{\log _a}b\)
D. \({a^{{{\log }_a}{b^2}}} = {b^2}\)
A. \(48\sqrt 3 {a^3}\)
B. \(60{a^3}\)
C. \(20\sqrt 3 {a^3}\)
D. \(60\sqrt 3 {a^3}\)
A. \(a + b\)
B. \(\dfrac{{a + b}}{{ab}}\)
C. \(\dfrac{1}{{a + b}}\)
D. \(\dfrac{{ab}}{{a + b}}\)
A. \(\left( { - 1;3} \right)\)
B. \(\left( {1;3} \right)\)
C. \(\left( { - \infty ;1} \right)\) và \(\left( {3; + \infty } \right)\)
D. \(\mathbb{R}\)
A. \(S = \left( { - 1;2} \right)\)
B. \(S = \left( { - \infty ; - 1} \right) \cup \left( {2; + \infty } \right)\)
C. \(S = \left( {0;\dfrac{1}{2}} \right) \cup \left( {4; + \infty } \right)\)
D. \(S = \left( {\dfrac{1}{2};4} \right)\)
A. \(2{t^2} - 3t + 2 = 0\)
B. \(\dfrac{1}{4}{t^2} - 3t + 2 = 0\)
C. \(4{t^2} - 3t - 2 = 0\)
D. \(4{t^2} + t - 2 = 0\)
A. \(12{a^3}\)
B. \(9{a^3}\)
C. \(36{a^3}\)
D. \(45{a^3}\)
A. 3
B. 1
C. 2
D. 4
A. 1
B. 2
C. 3
D. 0
A. 4
B. 2
C. 5
D. 3
A. \(\dfrac{{4\pi {a^2}\sqrt 3 }}{3}\)
B. \(4\pi {a^2}\)
C. \(8\pi {a^2}\)
D. \(\dfrac{{8\pi {a^2}\sqrt 3 }}{3}\)
A. \(y' = \dfrac{{x - 1}}{{\ln \left( {{x^2} - 2x + 3} \right)}}\)
B. \(y' = \dfrac{1}{{\left( {{x^2} - 2x + 3} \right)\ln 2}}\)
C. \(y' = \dfrac{{2\left( {x - 1} \right)}}{{\left( {{x^2} - 2x + 3} \right)\ln 2}}\)
D. \(y' = \dfrac{{2\left( {x - 1} \right)}}{{{x^2} - 2x + 3}}\)
A. \(48\pi {a^3}\)
B. \(16\pi {a^3}\)
C. \(12\pi {a^3}\)
D. \(32\pi {a^3}\)
A. \(\alpha < \beta < \gamma \)
B. \(\gamma < \alpha < \beta \)
C. \(\alpha < \gamma < \beta \)
D. \(\gamma < \beta < \alpha \)
A. \(m = 4\)
B. \(m = 1\)
C. \(m = - 17\)
D. \(m = 3\)
A. \(m < 3\)
B. \(m \ge \dfrac{9}{4}\)
C. \(m \le \dfrac{9}{4}\)
D. \(m < \dfrac{9}{4}\)
A. \(2031\)
B. \(2035\)
C. \(2025\)
D. \(2041\)
A. \(253.648.000\) đồng
B. \(212.241.000\) đồng
C. \(239.018.000\) đồng
D. \(225.232.000\) đồng
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