The distance between a point PP and a line: r(t)=r0+tvr(t)=r0+tvcan be given by:

d=|PR??×v||v|d=|PR?×v||v|

Where R is any point on the line r(t) (in particular it can ber0 )

Find the distances between the line r(t)=?5+5t,?5,4+t? andpoints:

(4,?2,5): ??

(1,?6,0): ??

(7,?7,5): ??