A.2
B.3
C.1
D.4

A.\(\left( {4; - 6;6} \right)\)
B.\(\left( {3; - 3;3} \right)\)
C.\(\left( {2;2;2} \right)\)
D.\(\left( {2; - 2;2} \right)\)

A.\( - 19\)
B.\(25\)
C.\( - 15\)
D.\(29\)

A.\(P\left( {10;5; - 3} \right)\)
B.\(Q\left( {7;4;3} \right)\)
C.\(M\left( { - 1; - 2; - 4} \right)\)
D.\(N\left( {10;5;1} \right)\)

A.\({\left( {x + 1} \right)^2} + {y^2} + {z^2} = 25\)
B.\({\left( {x - 1} \right)^2} + {y^2} + {z^2} = 25\)
C.\({\left( {x + 1} \right)^2} + {y^2} + {z^2} = 5\)
D.\({\left( {x - 1} \right)^2} + {y^2} + {z^2} = 5\)

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

A.\(6\)
B.\(4\)
C.\(3\)
D.\(5\)

A.\( - 4\)
B.\(4\)
C.\( - 16\)
D.\(16\)

A.\(\dfrac{{\sqrt 6 a}}{3}\)
B.\(\dfrac{{\sqrt 6 a}}{4}\)
C.\(\dfrac{{2\sqrt 6 a}}{3}\)
D.\(\dfrac{{\sqrt 6 a}}{2}\)

A.\(x + 2y - 3z + 9 = 0\)
B.\(x + 2y - 3z - 9 = 0\)
C.\(2x - y + 3z + 9 = 0\)
D.\(2x - y + 3z - 9 = 0\)