alleryThe direction ratios of the line joining the points $(1,2,3)$ and $(4,5,6)$ are:
A$4, 5, 6$
B$3, 3, 3$
C$1, 2, 3$
D$5, 7, 9$
Answer & Solution
Correct answer: B. $3, 3, 3$
Direction ratios = differences of coordinates: (4−1, 5−2, 6−3) = (3,3,3).
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