Provide solution for RD Sharma Maths Class 12 Chapter 26 Directions Cosines and Direction Ratios Exercise Multiple Choice Question, question 18.
Final Answer: (c) (0,-3,0)
Given: Point (2,-3,4)
To Find: Foot of the perpendicular on y-axis
Solution: As the foot of the perpendicular of point (2,-3,4) lie on y-axis, the y-coordinate at the foot is -3, while x and z coordinate are zero on y-axis. So, the coordinate of foot of perpendicular are (0,-3,0)
Therefore, option (c) is correct.