CBSE 2023 · Region 2 · Set 1 · Q9 · 1 mark
Position vector of the mid-point of line segment AB is $\displaystyle 3 \hat{\mathrm{i}}+2 \hat{\mathrm{j}}-3 \hat{\mathrm{k}}$. If position vector of the point A is $\displaystyle 2 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-4 \hat{\mathrm{k}}$, then position vector of the point $\displaystyle B$ is
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 4 \hat{\mathrm{i}}+\hat{\mathrm{j}}-2 \hat{\mathrm{k}}$
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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.