CBSE 2026 · Region 1 · Set 2 · Q7 · 1 mark
The value of $\displaystyle \mathrm{m}$ for which the points with position vectors $\displaystyle -\hat{\mathrm{i}}-\hat{\mathrm{j}}+2 \hat{\mathrm{k}}$, $\displaystyle 2 \hat{\mathrm{i}}+\mathrm{m} \hat{\mathrm{j}}+5 \hat{\mathrm{k}}$ and $\displaystyle 3 \hat{\mathrm{i}}+11 \hat{\mathrm{j}}+6 \hat{\mathrm{k}}$ are collinear, is
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle 8$
Vector AlgebraProduct of Two VectorsApplymcqmedium
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CBSE Class 12 Mathematics past-paper question from the 2026board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.