A.\(\dfrac{{\sqrt 3 }}{3}\)
B.\(\sqrt 2 \)
C.\(\sqrt 3 \)
D.\(\sqrt 6 \)

A.\(\left( {2;4} \right)\)
B.\(\left( {3;4} \right)\)
C.\(\left[ {3;4} \right]\)
D.\(\left[ {2;4} \right]\)

A.\(y < z < x\)
B.\(x < y < z\)
C.\(z < x < y\)
D.\(z < y < x\)

A.\(\dfrac{7}{2}\)
B.\(\dfrac{7}{6}\)
C.\(\dfrac{7}{9}\)
D.\(\dfrac{7}{3}\)

A.\(2\)
B.\(16\)
C.\(8\)
D.\(4\)

A.\(4\sqrt 3 \)
B.\(2\sqrt 3 \)
C.\(\sqrt 3 \)
D.\(8\sqrt 3 \)

A.\(\sqrt {10} \)
B.\(2\)
C.\(2\sqrt 2 \)
D.\(4\)

A.\({2021^2}\)
B.\({2^{2021}}\)
C.\(2021!\)
D.\(4042\)

A.\(\int\limits_a^b {\left| {f\left( x \right)} \right|dx} \)
B.\(\int\limits_a^b {f\left( x \right)dx} \)
C.\(\int\limits_a^b {{f^2}\left( x \right)dx} \)
D.\(\pi \int\limits_a^b {f\left( x \right)dx} \)

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