Three Dimensional Geometry Question 83
Question: The co-ordinates of the point P are $ (x,y,z) $ and the direction cosines of the line OP when O is the origin, are $ l, m, n $ . If $ OP = r $ , then
Options:
A) $ l=x, m=y, n=z $
B) $ l=xr,m=yr,n=zr $
C) $ x=lr, y=mr, z=nr $
D) None of these
Show Answer
Answer:
Correct Answer: C
Solution:
It is obvious.
BETA
