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.\(y =  - 3\)

A.\(5\)
B.\(9\)
C.\(1\)
D.\(4\)

A.Tia \({\beta ^ + }\)
B.Tia \(\alpha \)
C.Tia \({\beta ^ - }\)
D.Tia \(\gamma \)