A.\(\cot x + C\)
B.\( - \tan x + C\)
C.\( - \cot x + C\)
D.\(\tan x + C\)

A.\(2\)
B.\(3\)
C.\(4\)
D.\(6\)

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

A.\(3\sqrt 2 a\)
B.\(5a\)
C.\(3a\)
D.\(\sqrt 5 a\)

A.\(H\left( {1;2} \right)\)
B.\(T\left( {2; - 1} \right)\)
C.\(G\left( {1; - 2} \right)\)
D.\(K\left( {2;1} \right)\)

A.\(\left( { - 1; - 8;2} \right)\)
B.\(\left( {7;4; - 4} \right)\)
C.\(\left( {1;8; - 2} \right)\)
D.\(\left( { - 7; - 4;4} \right)\)

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

A.\(y = \tan x\)
B.\(y = 3{x^3} + 2\)
C.\(y = \dfrac{{4x + 1}}{{x - 3}}\)
D.\(y = 3{x^4} - 1\)

A.\( - 6\)
B.\( - 3\)
C.\(5\)
D.\( - 5\)

A.\(a\sqrt 2 \)
B.\(a\)
C.\(\dfrac{a}{2}\)
D.\(\dfrac{{3a}}{4}\)