Three Dimensional Geometry Question 95

Question: The direction ratios of the line joining the points (4, 3, ?5) and (?2, 1, ?8) are

[AI CBSE 1984; MP PET 1988]

Options:

A) $ \frac{6}{7},\frac{2}{7},\frac{3}{7} $

B) $ 6,2,3 $

C) $ 2,,\ 4,\ -13 $

D) None of these

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Answer:

Correct Answer: B

Solution:

Direction ratios are, $ l=4-(-2)=6,m=3-1=2 $ and $ n=-,5+8=3 $ ..