CBSE 2023 · Region 5 · Set 1 · Q13 · 1 mark
Two vectors $\displaystyle \overrightarrow{\mathrm{a}}=\mathrm{a}_{1} \hat{\mathrm{i}}+\mathrm{a}_{2} \hat{\mathrm{j}}+\mathrm{a}_{3} \hat{\mathrm{k}}$ and $\displaystyle \overrightarrow{\mathrm{b}}=\mathrm{b}_{1} \hat{\mathrm{i}}+\mathrm{b}_{2} \hat{\mathrm{j}}+\mathrm{b}_{3} \hat{\mathrm{k}}$ are collinear if
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle \frac{\mathrm{a}_{1}}{\mathrm{~b}_{1}}=\frac{\mathrm{a}_{2}}{\mathrm{~b}_{2}}=\frac{\mathrm{a}_{3}}{\mathrm{~b}_{3}}$
Vector AlgebraTypes of VectorsRemembermcqeasy
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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.