Three Dimensional Geometry Question 59
Question: The direction cosines of the line $ x=y=z $ are
[MP PET 1989]
Options:
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
Show Answer
Answer:
Correct Answer: A
Solution:
Direction cosines $ ( \frac{1}{\sqrt{3}},\frac{1}{\sqrt{3}},,\frac{1}{\sqrt{3}} ) $ .