A.\(x = 13\)
B.\(x = 3\)
C.\(x = 11\)
D.\(x = 21\)

A.\(8\)
B.\(6\)
C.\(2\)
D.\(12\)

A.\(\log {a^3} = 3\log a\)
B.\(\log \left( {3a} \right) = \dfrac{1}{3}\log a\)
C.\(\log \left( {3a} \right) = 3\log a\)
D.\(\log {a^3} = \dfrac{1}{3}\log a\)

A.\(x = \dfrac{2}{3}\)
B.\(x = \dfrac{5}{2}\)
C.\(x = \dfrac{3}{2}\)
D.\(x = 2\)

A.\( - 4 + i\)
B.\(4 - i\)
C.\(2 - i\)
D.\(2 + 5i\)

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

A.\(125\)
B.\(60\)
C.\(15\)
D.\(120\)

A.\(S = 16\pi \sqrt 3 \)
B.\(S = 4\pi \sqrt 3 \)
C.\(S = 8\pi \sqrt 3 \)
D.\(S = 24\pi \)

A.\(\left( {0; + \infty } \right)\)
B.\(\left( {1; + \infty } \right)\)
C.\(\left( { - 1;1} \right)\)
D.\(\left( { - \infty ; - 1} \right)\)

A.\(P\)
B.\(M\)
C.\(Q\)
D.\(N\)