The direction cosines of the line (x = y = z) are | MATH - SYSTEM OF CO-ORDINATES, DIRECTION COSINES & DIRECTION RATIOS, PROJECTION | SolveeIt | Solveeit

Today, August 23

Question

The direction cosines of the line $x = y = z$ are

A

$\frac { 1 } { \sqrt { 3 } } , \frac { 1 } { \sqrt { 3 } } , \frac { 1 } { \sqrt { 3 } }$

B

$\frac { 1 } { 3 } , \frac { 1 } { 3 } , \frac { 1 } { 3 }$

C

1, 1, 1

D

None of these

Answer

$\frac { 1 } { \sqrt { 3 } } , \frac { 1 } { \sqrt { 3 } } , \frac { 1 } { \sqrt { 3 } }$

Explanation

Solution

Direction cosines $\left( \frac { 1 } { \sqrt { 3 } } , \frac { 1 } { \sqrt { 3 } } , \frac { 1 } { \sqrt { 3 } } \right)$ .