A.\(y = {x^3} - 5{x^2} + x + 6\)
B.\(y = {x^3} - 6{x^2} + 9x - 1\)
C.\(y =  - {x^3} + 6{x^2} - 9x + 7\)
D.\(y = {x^4} + {x^2} - 3\)

A.\(16\)
B.\(4 + 2\sqrt 3 \)  
C.\(12\)
D.\(20\)

A.\(9\pi \sqrt 3 \)  
B.\(27\pi \sqrt 3 \)  
C.\(3\pi \sqrt 3 \)  
D.\(6\pi \sqrt 3 \)

A.\(3\)
B.\(0\)  
C.\(1\)  
D.\(2\)

A.\(\left( { - 2;0} \right)\)
B.\(\left( { - \infty ; - 1} \right)\)  
C.\(\left( { - 2; + \infty } \right)\)
D.\(\left( { - 1;1} \right)\)

A.\( - 2019\)
B.\( - 1968\)  
C.\( - 1966\)
D.\( - 1993\)

A.\(11\)
B.\(9\)  
C.\(10\)
D.\(8\)

A.\(\dfrac{5}{2}\)
B.\(\dfrac{{10}}{3}\)
C.\(\dfrac{5}{3}\)
D.\(\dfrac{{15}}{4}\)

A.\(10\)
B.\({e^2}\)
C.\(2021\)
D.\(\ln 2\)

A.\(6\)
B.\(5\)  
C.\(4\)
D.\(3\)