MCQ
Line passing through $(3, 4, 5)$ and $(4, 5, 6)$ has direction ratios:
  • $1,1,1$
  • B
    $\sqrt{3},\sqrt{3},\sqrt{3}$
  • C
    $\frac{-1}{\sqrt{3}},\frac{1}{\sqrt{3}},\frac{1}{\sqrt{3}}$
  • D
    $7,9,11$

Answer

Correct option: A.
$1,1,1$
Given points $(3, 4, 5)$ and $(4, 5, 6)$ The are given as $(4 - 3, 5 - 4, 6 - 5) = (1, 1, 1)$

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