Solveeit Logo
Login

Question

Mathematics Question on Direction Cosines and Direction Ratios of a Line

The direction cosines of a line which makes equal angles with the co-ordinate axes is/are :

A

1, 1, 1

B

-1, -1, -1

C

±13,±13,±13±\frac{1}{\sqrt3},±\frac{1}{\sqrt3},±\frac{1}{\sqrt3}

D

±3,±3,±3±\sqrt3,±\sqrt3,±\sqrt3

Answer

±13,±13,±13±\frac{1}{\sqrt3},±\frac{1}{\sqrt3},±\frac{1}{\sqrt3}

Explanation

Solution

The correct option is (C) :±13,±13,±13±\frac{1}{\sqrt3},±\frac{1}{\sqrt3},±\frac{1}{\sqrt3}.