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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 2 · Set 2 · Q11
If $\displaystyle \sin (\alpha+\beta)=1$, then the value of $\displaystyle \sin \left(\frac{\alpha+\beta}{2}\right)$ is :
Official answer
From CBSE’s own marking scheme for this paper.
(A)
$\displaystyle \frac{1}{\sqrt{2}}$
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CBSE Class 10 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.