3-d

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 $OP$, then



1) $l=x,\,m=y,\,n=z$
2) $l=xr,m=yr,n=zr$
3) $x=lr,\,y=mr,\,z=nr$
4) None of these
Solution: Explanation: No Explanation
System of co-ordinates Direction cosines and direction ratios Projection

Rate this question:

Average rating: (0 votes)

Previous Question Next Question