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11. three dimension geometry — Maths STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceMaths11. three dimension geometry1 Mark
MCQ
The line joining the points $( - 2,\,\,1,\, - 8)$ and $(a,\,b,\,c)$ is parallel to the line whose direction ratios are $6, 2, 3.$ The values of $a,b,c$ are
  • ✓
    $4, 3, -5$
  • B
    $1, 2, -13/2$
  • C
    $10, 5, -2$
  • D
    None of these
✓

Answer

Correct option: A.
$4, 3, -5$
a
(a) According to question, $\frac{{a + 2}}{6} = \frac{{b - 1}}{2} = \frac{{c + 8}}{3}\,$

$ \Rightarrow \,\,a = 4,\,\,b = 3,\,\,c = - 5$.

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