A.\(18\)
B.\(6\)
C.\(8\)
D.\(12\)

A.\(x = 4\)
B.\(x = 1\)
C.\(x =  - 1\)
D.\(x =  - 2\)

A.\(y =  - {x^2} + 3{x^2}\)
B.\(y = {x^3} - 3{x^2}\)
C.\(y =  - {x^4} + 2{x^2}\)
D.\(y = {x^4} - 2{x^2}\)

A.\(36\pi \)
B.\(\dfrac{{32\pi }}{3}\)
C.\(\dfrac{{8\pi }}{3}\)
D.\(16\pi \)

A.\(4 + {\log _a}b\)
B.\(\dfrac{1}{4}{\log _a}b\)
C.\(4{\log _a}b\)
D.\(\dfrac{1}{4} + {\log _a}b\)

A.\(3\)
B.\(6\)
C.\(8\)
D.\(9\)

A.\((1; + \infty ).\)
B.\(( - \infty ;1)\)
C.\({\rm{[}}1; + \infty )\)
D.\(( - \infty ; + \infty )\)

A.\(y = 1\)
B.\(y = 2\)
C.\(y =  - 1\)
D.\(y = \dfrac{1}{2}\)

A.\(15\)
B.\(28\)
C.\(14\)
D.\(84\)

A.\(\left( {5;3;0} \right)\)
B.\(\left( {3;5;0} \right)\)
C.\(\left( {0;5;2} \right)\)
D.\(\left( {3;0;2} \right)\)