question_answer

Let Q be the foot of perpendicular from the origin to the plane \[4x-3y+z+13=0\] and P be a point \[\left( -1,1,-6 \right)\] on the plane. Then, the length PQ is _________.

A)  \[3.\sqrt{\frac{7}{2}}\]

B)  \[2\sqrt{\frac{7}{2}}\]

C)  \[3\sqrt{\frac{5}{2}}\]           

D)  \[2\sqrt{\frac{5}{2}}\]

E)  None of these