A.\(1\)
B.\(\dfrac{1}{2}\)
C.\(2\)
D.\(\dfrac{{\sqrt 2 }}{2}\)

A.\(3\)
B.\(1\)
C.\(0\)
D.\(2\)

A.\(4\)
B.\(5\)
C.\(2\)
D.\(1\)

A.\(18\)
B.\(1\)
C.\(2\)
D.\(3\)

A.\(55\pi \)
B.\(100\pi \)
C.\(75\pi \)
D.\(50\pi \)

A.\(47 - 12\sqrt 6 \)
B.\(\dfrac{{141}}{8}\)
C.\(39 - 12\sqrt 6 \)
D.\(\dfrac{{77}}{8}\)

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

A.\(8\)
B.\(32\)
C.\(6\)
D.\(4\)

A.\(48\pi \)
B.\(30\pi \)
C.\(15\pi \)
D.\(36\pi \)

A.\({\left( {x - 2} \right)^2} + {y^2} + {\left( {z - 1} \right)^2} = 2\)
B.\({\left( {x - 2} \right)^2} + {y^2} + {\left( {z - 1} \right)^2} = 4\)
C.\({\left( {x + 2} \right)^2} + {y^2} + {\left( {z + 1} \right)^2} = 2\)
D.\({\left( {x + 2} \right)^2} + {y^2} + {\left( {z + 1} \right)^2} = 4\)