CBSE 2024 · Region 1 · Set 1 · Q7 · 1 mark
Let $\displaystyle \theta$ be the angle between two unit vectors $\displaystyle \hat{\mathrm{a}}$ and $\displaystyle \hat{\mathrm{b}}$ such that $\displaystyle \sin \theta=\frac{3}{5}$. Then, $\displaystyle \hat{\mathrm{a}} \cdot \hat{\mathrm{b}}$ is equal to :
Official answer
From CBSE’s own marking scheme for this paper.
(C)
$\displaystyle \pm \frac{4}{5}$
Vector AlgebraProduct of Two VectorsApplymcqeasy
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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.