A.\(x = 76\)
B.\(x = \dfrac{{81}}{5}\)
C.\(x = \dfrac{{64}}{5}\)
D.\(x = \dfrac{3}{5}\)

A.\(2\)
B.\(6\)
C.\( - 6\)
D.\( - 2\)

A.\(\dfrac{{2{a^3}}}{3}\)
B.\(\dfrac{{8{a^3}}}{3}\)
C.\(2{a^3}\)
D.\(8{a^3}\)

A.\(\int {f\left( x \right)dx}  =  - \dfrac{{\cos 5x}}{5} + C\)
B.\(\int {f\left( x \right)dx}  = \cos 5x + C\)
C.\(\int {f\left( x \right)dx}  = 5\cos 5x + C\)
D.\(\int {f\left( x \right)dx}  = \dfrac{{\cos 5x}}{5} + C\)

A.\(80\pi \)
B.\(\dfrac{{80\pi }}{3}\)
C.\(\dfrac{{100\pi }}{3}\)
D.\(100\pi \)

A.\(5 + 6i\)
B.\(5 - 6i\)
C.\( - 5 + 6i\)
D.\( - 5 - 6i\)

A.\(x = \dfrac{{13}}{3}\)
B.\(x = 1\)
C.\(x = 3\)
D.\(x =  - \dfrac{1}{3}\)

A.\(\dfrac{{3a}}{2}\)
B.\(3a\)
C.\(\dfrac{{2a}}{3}\)
D.\(9a\)

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

A.\(3\)
B.\( - 3\)
C.\(0\)
D.\( - 2\)