EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Three Dimensional Geometry>Direction Ratios of the Line Joining Two Points

Direction Ratios of the Line Joining Two Points

Author:Embibe Experts

12th Odisha Board

IMPORTANT

Important Questions on Direction Ratios of the Line Joining Two Points

HARD

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR MATHEMATICS>Three Dimensional Geometry>Direction Ratios of the Line Joining Two Points> Q 1

If $<l_{1}, m_{1}, n_{1}> and <l_{2}, m_{2}, n_{2}>$ are direction cosines of two mutually perpendicular lines, then show that the direction cosines of the line perpendicular to both of them are $<m_{1} n_{2} - m_{2} n_{1}, n_{1} l_{2} - n_{2} l_{1}, l_{1} m_{2} - l_{2} m_{1}>$ .