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.\(52000\pi \,\,\left( {c{m^3}} \right)\)

A.\(D = \left( { - \infty ;0} \right] \cup \left[ {3; + \infty } \right)\)           
B.\(D = \left( { - \infty ;0} \right) \cup \left( {3; + \infty } \right)\)
C.\(D = \left( {0;3} \right)\)                           
D.\(D = \left[ {0;3} \right]\)

A.\({120^0}\)
B.\({30^0}\)
C.\({60^0}\)
D.\({150^0}\)

A.\(P\left( {3;2;0} \right)\)
B.\(Q\left( {3;0;4} \right)\)
C.\(N\left( {0;2;4} \right)\)
D.\(M\left( {0;0;4} \right)\)

A.\(m \ne 0\)
B.\(m > 0\)
C.\(m \ge 1\)
D.\(m \ge 0\)