A.\({30^0}\)
B.\(\dfrac{1}{2}\)
C.\({60^0}\)
D.\(\dfrac{{\sqrt 3 }}{2}\)

A.\(a < 0,\,\,b > 0,\,\,c - ab < 0\)
B.\(a > 0,\,\,b > 0,\,\,c - ab < 0\)
C.\(a > 0,\,\,b < 0,\,\,c - ab < 0\)
D.\(a < 0,\,\,b < 0,\,\,c - ab > 0\)

A.\(T = 1012\)
B.\(T =  - 2012\)
C.\(T = 1004\)
D.\(T = 1018\)

A.\(3\ln 2 + 3\)
B.\(2\ln 2 + 1\)
C.\(3\ln 2 + 4\)
D.\(12\ln 2 + 3\)

A.\(12\pi \)
B.\(9\pi \)
C.\(30\pi \)
D.\(15\pi \)

A.\(2{t^2} + t = 0\)
B.\(2{t^2} - t = 0\)
C.\( - 2{t^2} - t = 0\)
D.\(2{t^2} + t - 2 = 0\)

A.\(D = \mathbb{R}\backslash \left\{ 0 \right\}\)
B.\(D = \left( {3; + \infty } \right)\)
C.\(D = \mathbb{R}\backslash \left\{ 3 \right\}\)
D.\(D = \mathbb{R}\)

A.\(S = \left[ { - 1;1} \right]\)
B.\(S = \left[ { - 1;0} \right)\)
C.\(S = \left[ { - 1;1} \right]\backslash \left\{ 0 \right\}\)
D.\(S = \left( {0;1} \right]\)

A.\(\int {\dfrac{{dx}}{{3x - 2}} = \ln \left| {3x - 2} \right| + C} \)  
B.\(\int {\dfrac{{dx}}{{3x - 2}} =  - \dfrac{1}{2}\ln \left| {3x - 2} \right| + C} \)
C.\(\int {\dfrac{{dx}}{{3x - 2}} = \dfrac{1}{3}\ln \left| {3x + 2} \right| + C} \)
D.\(\int {\dfrac{{dx}}{{3x - 2}} = \dfrac{1}{3}\ln \left| {2 - 3x} \right| + C} \)

A.\(13\,000\pi \,\,\left( {c{m^3}} \right)\)
B.\(5000\pi \,\,\left( {c{m^3}} \right)\)
C.\(15\,000\pi \,\,\left( {c{m^3}} \right)\)
D.\(52000\pi \,\,\left( {c{m^3}} \right)\)