CBSE 2024 · Region 2 · Set 1 · Q18 · 1 mark
If a line makes an angle of $\displaystyle 30^{\circ}$ with the positive direction of x -axis, $\displaystyle 120^{\circ}$ with the positive direction of $\displaystyle y$-axis, then the angle which it makes with the positive direction of z -axis is :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle 90$°
Three Dimensional GeometryDirection Cosines and Direction Ratios of a LineApplymcqmedium
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CBSE Class 12 Mathematics past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.