CBSE 2023 · Region 2 · Set 2 · Q7 · 1 mark
Equation of line passing through origin and making $\displaystyle 30^{\circ}, 60^{\circ}$ and $\displaystyle 90^{\circ}$ with $\displaystyle x, \mathrm{y}, \mathrm{z}$ axes respectively is
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle \frac{2 x}{\sqrt{3}}=\frac{2 \mathrm{y}}{1}=\frac{\mathrm{z}}{0}$
Three Dimensional GeometryDirection Cosines and Direction Ratios of a LineApplymcqmedium
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CBSE Class 12 Mathematics past-paper question from the 2023board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.