A. \(I = \ln |x - 3| - \dfrac{{16}}{{x - 3}} + C\)
B. \(I = \dfrac{1}{5}\ln |x - 3| - \dfrac{{16}}{{x - 3}} + C\)
C. \(I = \ln |x - 3| + \dfrac{{16}}{{x - 3}} + C\)
D. \(I = 5\ln |x - 3| - \dfrac{{16}}{{x - 3}} + C\)
A. \(\sqrt 3 - \dfrac{\pi }{3}\)
B. \(\dfrac{\pi }{3} - 3\)
C. \(\dfrac{{{\pi ^2}}}{3} - \pi \sqrt 3 \)
D. \(\pi \sqrt 3 - \dfrac{{{\pi ^2}}}{3}\)
A. \(I = \sin \left( {4x + 2} \right) + C\)
B. \(I = - \sin \left( {4x + 3} \right) + C\)
C. \(I = \dfrac{1}{4}\sin \left( {4x + 3} \right) + C\)
D. \(I = 4\sin \left( {4x + 3} \right) + C\)
A. F’(x) = x.
B. F’(x) = 1.
C. F’(x) = x - 1.
D. F’(x) = \(\dfrac{{{x^2}}}{2} - \dfrac{1}{2}\).
A. \(2\ln |x + 1| + \dfrac{{2{x^2} + 2x + 4}}{{x + 1}}\).
B. \(\ln \left( {x + 1} \right) + \dfrac{{2{x^2} + 2x + 4}}{{x + 1}}\).
C. \(\ln {\left( {x + 1} \right)^2} + \dfrac{{2{x^2} + 3x + 5}}{{x + 1}}\).
D. \(\dfrac{{2{x^2} + 3x + 5}}{{x + 1}} + \ln {e^2}{\left( {x + 1} \right)^2}\).
A. Nếu V1 = V2 thì chắc chắn suy ra \(f(x) = g(x),\forall x \in [a;b]\).
B. S1>S2.
C. V1 > V2.
D. Cả 3 phương án trên đều sai.
A. 27ln2.
B. 72ln27
C. 3ln72.
D. Một kết quả khác.
A. \( - \dfrac{1}{4}\sin \left( {\pi - 2a} \right) - \sin 2a + \pi - 4a\).
B. \( \dfrac{1}{4}\left( {\sin \left( {\pi - 2a} \right) - \sin 2a + \pi - 4a} \right)\).
C. \( - \dfrac{1}{4}\left( {\sin \left( {\pi - 2a} \right) - \sin 2a + \pi - 4a} \right)\).
D. 0
A. 2
B. 4
C. 3
D. 5
A. \(f(x) = {\pi ^x}\ln x\).
B. \(f(x0 = - {\pi ^x}\ln x\).
C. \(f(x) = \dfrac{{{\pi ^x}}}{{\ln \pi }}\).
D. \(f(x) = \dfrac{{{\pi ^x}}}{{\ln x}}\).
A. \(F(3) = \dfrac{1}{2}\).
B. \(F(3) = \ln \dfrac{3}{2}\).
C. F(3) = ln2.
D. F(3) = ln2 + 1.
A. \(f(x) = {x^3} - 2\sqrt x - \dfrac{1}{x} - x\).
B. \(f(x) = {x^3} - \sqrt x - \dfrac{1}{{\sqrt x }} - x\).
C. \(f(x) = {x^3} - 2\sqrt x + \dfrac{1}{x}\).
D. \(f(x{x^3} - \dfrac{1}{2}\sqrt x - \dfrac{1}{x} - x\).
A. \(\dfrac{9}{2}\).
B. 3
C. \(\dfrac{9}{4}\)
D. \(\dfrac{7}{2}\).
A. \(\dfrac{3}{2}\)
B. \( - \dfrac{3}{2}\)
C. \(\dfrac{5}{2}\)
D. \( - \dfrac{5}{2}\)
A. \(I = - \dfrac{1}{5}\cos 5x + C\).
B. \(I = \dfrac{1}{5}\cos 5x + C\).
C. \(I = - \dfrac{1}{8}\cos 4x - \dfrac{1}{{12}}\cos 6x + C\).
D. \(I = \dfrac{1}{8}\cos 4x + \dfrac{1}{{12}}\cos 6x + C\).
A. \(e + \dfrac{1}{e} - 2\)
B. 0
C. \(2\left( {e + \dfrac{1}{e} - 2} \right)\).
D. \(e + \dfrac{1}{e}\).
A. \({x^2}\left( {1 + \dfrac{3}{4}{x^2}} \right) + C\).
B. \(\dfrac{{{x^2}}}{2}\left( {2x + {x^3}} \right) + C\).
C. \({x^2}\left( {2 + 6x} \right) + C\).
D. \({x^2} + \dfrac{3}{4}{x^4}\).
A. \(\cos \left( {\dfrac{\pi }{3} - 2x} \right) + C\).
B. \( - \dfrac{1}{2}\cos \left( {\dfrac{\pi }{3} - 2x} \right) + C\).
C. \(\dfrac{1}{2}\cos \left( {\dfrac{\pi }{3} - 2x} \right) + C\).
D. \( - \cos \left( {\dfrac{\pi }{3} - 2x} \right) + C\).
A. \(2\sqrt x + 2\ln \left( {\sqrt x + 1} \right) + C\).
B. \(2 - 2\ln \left( {\sqrt x + 1} \right) + C\).
C. \(2\sqrt x - 2\ln \left( {\sqrt x + 1} \right) + C\).
D. \(2 + 2\ln \left( {\sqrt x + 1} \right) + C\).
A. S= ln 2 – 1
B. S = ln 4 – 1
C. S =ln 4 + 1
D. S = ln 2 + 1
A. m = 1, m = - 6
B. m = - 1 , m = - 6
C. m = - 1, m = 6
D. m = 1, m = 6
A. \(P = - \dfrac{3}{2}\).
B. \(P = \dfrac{3}{2}\).
C. \(P = - \dfrac{5}{3}\).
D. \(P = \dfrac{5}{3}\).
A. \(d\left( {A,d'} \right) = \frac{{\left| {\left[ {\overrightarrow {AM'} ,\overrightarrow {u'} } \right]} \right|}}{{\left| {\overrightarrow {u'} } \right|}}\)
B. \(d\left( {A,d'} \right) = \frac{{\left| {\left[ {\overrightarrow {AM'} ,\overrightarrow {u'} } \right]} \right|}}{{\overrightarrow {u'} }}\)
C. \(d\left( {A,d'} \right) = \frac{{\left[ {\overrightarrow {AM'} ,\overrightarrow {u'} } \right]}}{{\overrightarrow {u'} }}\)
D. \(d\left( {A,d'} \right) = \frac{{\left| {\overrightarrow {AM'} .\overrightarrow {u'} } \right|}}{{\left| {\overrightarrow {u'} } \right|}}\)
A. \(\left( {1;0;0} \right).\)
B. \(\left( {0;0;1} \right).\)
C. \(\left( {0;1;0} \right).\)
D. \(\left( {0;0;0} \right).\)
A. \(\left( {3;\dfrac{8}{3}; - \dfrac{8}{3}} \right).\)
B. \(\left( {3;\dfrac{8}{3};\dfrac{8}{3}} \right).\)
C. \(\left( {3;3; - \dfrac{8}{3}} \right).\)
D. \(\left( {1;2;\dfrac{1}{3}} \right).\)
A. 43
B. 44
C. 42
D. 45
A. D(0;1;3)
B. D(0;3;1)
C. D(0; - 3;1)
D. D(0;3; - 1)
A. \(I(\dfrac{8}{3};\dfrac{5}{3};\dfrac{8}{3})\).
B. \(I(\dfrac{5}{3};\dfrac{8}{3};\dfrac{8}{3})\).
C. \(I( - \dfrac{5}{3};\dfrac{8}{3};\dfrac{8}{3}).\)
D. \(I(\dfrac{8}{3};\dfrac{8}{3};\dfrac{5}{3})\).
A. \(\cos \left( {\overrightarrow b ,\overrightarrow c } \right) = \dfrac{{\sqrt 6 }}{3}.\)
B. \(\overrightarrow a + \overrightarrow b + \overrightarrow c = \overrightarrow 0 .\)
C. \(\overrightarrow a ,\overrightarrow b ,\overrightarrow c \) đồng phẳng.
D. \(\overrightarrow a .\overrightarrow b = 1.\)
A. \(\dfrac{2}{{\sqrt {13} }}.\)
B. \(\dfrac{1}{{\sqrt {13} }}.\)
C. \(\dfrac{{\sqrt {13} }}{2}.\)
D. \(\dfrac{{3\sqrt {13} }}{{13}}.\)
A. \({\left( {x - 2} \right)^2} + {\left( {y - 4} \right)^2} + {\left( {z - 6} \right)^2} = 20.\)
B. \({\left( {x - 2} \right)^2} + {\left( {y - 4} \right)^2} + {\left( {z - 6} \right)^2} = 40.\)
C. \({\left( {x - 2} \right)^2} + {\left( {y - 4} \right)^2} + {\left( {z - 6} \right)^2} = 52.\)
D. \({\left( {x - 2} \right)^2} + {\left( {y - 4} \right)^2} + {\left( {z - 6} \right)^2} = 56.\)
A. \({\left( {x - 2} \right)^2} + {\left( {y - 4} \right)^2} + {\left( {z - 6} \right)^2} = 20.\)
B. \({\left( {x - 2} \right)^2} + {\left( {y - 4} \right)^2} + {\left( {z - 6} \right)^2} = 40.\)
C. \({\left( {x - 2} \right)^2} + {\left( {y - 4} \right)^2} + {\left( {z - 6} \right)^2} = 52.\)
D. \({\left( {x - 2} \right)^2} + {\left( {y - 4} \right)^2} + {\left( {z - 6} \right)^2} = 56.\)
A. \({\left( {x + 1} \right)^2} + {\left( {y + 2} \right)^2} + {\left( {z + 3} \right)^2} = 9.\)
B. \({\left( {x + 1} \right)^2} + {\left( {y - 2} \right)^2} + {\left( {z + 3} \right)^2} = 9.\)
C. \({\left( {x - 1} \right)^2} + {\left( {y + 2} \right)^2} + {\left( {z + 3} \right)^2} = 9.\)
D. \({\left( {x - 1} \right)^2} + {\left( {y - 2} \right)^2} + {\left( {z + 3} \right)^2} = 9.\)
A. \({\left( {x - 1} \right)^2} + {\left( {y + 1} \right)^2} + {\left( {z - 2} \right)^2} = 4.\)
B. \({\left( {x + 1} \right)^2} + {\left( {y + 1} \right)^2} + {\left( {z - 2} \right)^2} = 4.\)
C. \({\left( {x - 1} \right)^2} + {\left( {y - 1} \right)^2} + {\left( {z - 2} \right)^2} = 4.\)
D. \({\left( {x + 1} \right)^2} + {\left( {y - 1} \right)^2} + {\left( {z + 2} \right)^2} = 4.\)
A. \(\sqrt 7 \pi .\)
B. \(2\sqrt 7 \pi .\)
C. \(7\pi .\)
D. \(14\pi .\)
A. \(M\left( {0; - 3;0} \right)\).
B. \(M\left( {0;3;0} \right)\).
C. \(M\left( {0; - 2;0} \right)\).
D. \(M\left( {0;1;0} \right)\).
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