CBSE 2023 · Region 1 · Set 2 · Q6 · 1 mark
If $\displaystyle \vec{a}+\vec{b}=\hat{i}$ and $\displaystyle \vec{a}=2 \hat{i}-2 \hat{j}+2 \hat{k}$, then $\displaystyle |\vec{b}|$ equals:
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 3$
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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.