A.\(\mathbb{R}\backslash \left\{ 3 \right\}\)
B.\(\left( {3; + \infty } \right)\)
C.\(\left[ {3; + \infty } \right)\)
D.\(\mathbb{R}\)

A.\(x =  - 1,\,\,y =  - 3\)
B.\(x = 1,\,\,y =  - 3\)
C.\(x =  - 1,\,\,y =  - 1\)
D.\(x = 1,\,\,y =  - 1\)

A.\(\dfrac{1}{{22}}\)
B.\(\dfrac{5}{{12}}\)
C.\(\dfrac{2}{7}\)
D.\(\dfrac{7}{{44}}\)

A.\({2^a}{.2^b} = {2^{ab}}\)
B.\({2^a}{.2^b} = {2^{a + b}}\)
C.\({2^a}{.2^b} = {2^{a - b}}\)
D.\({2^a}{.2^b} = {4^{ab}}\)

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

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

A.\(x = 2\)
B.\(x = 3\)
C.\(x = 4\)
D.\(x =  - 2\)

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

A.\(4 - 3i\)
B.\(3 - 4i\)
C.\(3 + 4i\)
D.\(4 + 3i\)

A.\({e^x} + 2x + C\)
B.\({e^x} + \dfrac{{{x^3}}}{3} + C\)
C.\({e^x} - \dfrac{{{x^3}}}{3} + C\)
D.\({e^x} + {x^3} + C\)