A.\(1\)
B.\(2\)
C.\(4\)
D.\(3\)

A.\(\int {f\left( x \right)dx}  = \dfrac{1}{2}{x^4} - {x^2} + C\)
B.\(\int {f\left( x \right)dx}  = {x^4} - {x^2} + C\)
C.\(\int {f\left( x \right)dx}  = {x^4} - 2{x^2} + C\)
D.\(\int {f\left( x \right)dx}  = 2{x^4} - \dfrac{1}{2}{x^2} + C\)

A.\(\dfrac{{8{a^3}}}{3}\)
B.\(\dfrac{{8{a^3}}}{9}\)
C.\(\dfrac{{\sqrt 3 {a^3}}}{{12}}\)
D.\(\dfrac{{4{a^3}}}{9}\)

A.\( - 7\)
B.\(7\)
C.\(1\)
D.\( - 1\)

A.\( - 5i\)
B.\(5i\)
C.\( - 5\)
D.\(5\)

A.\(2,7\,\,cm\)
B.\(4,2\,\,cm\)
C.\(3,6\,\,cm\)
D.\(2,6\,\,cm\)

A.\(2\)
B.\(3\)
C.\(4\)
D.\(5\)

A.\({z_2} = 5 - 3i\)
B.\({z_3} =  - 5 - 3i\)
C.\({z_4} =  - 5 + 3i\)
D.\({z_1} = 5 + 3i\)

A.\(\left( { - 4;4} \right)\)
B.\(\left( {4; + \infty } \right)\)
C.\(\left( { - 4; + \infty } \right)\)
D.\(\left( { - \infty ;4} \right)\)

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