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

A.\({e^4} - e\)
B.\(\dfrac{1}{3}\left( {{e^4} - e} \right)\)
C.\(\dfrac{1}{3}\left( {{e^4} - 1} \right)\)
D.\(\dfrac{1}{3}\left( {{e^4} + e} \right)\)

A.\(f\left( 4 \right) = 529\)
B.\(f\left( 4 \right) = 256\)
C.\(f\left( 4 \right) = 961\)
D.\(f\left( 4 \right) = 441\)

A.\(1\)
B.\(53\)
C.\(10\)
D.\(4\)

A.\(5\)
B.\(6\)
C.\(7\)
D.\(8\)

A.\(5\)
B.\(6\)
C.\(7\)
D.\(4\)

A.\(a - b + 2c =  - 4\)
B.\(2a + 3b - 5c = 0\)
C.\(2a - 3b - 8c = 0\)
D.\(a + b + c = 2\)

A.\(\dfrac{{\sqrt {226} }}{2}\)
B.\(\dfrac{{\sqrt {178} }}{2}\)
C.\(\dfrac{{5\sqrt {10} }}{2}\)
D.\(\dfrac{{\sqrt {122} }}{5}\)

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

A.\(2026\)
B.\(2024\)
C.\(2021\)
D.\(2029\)