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Mathematics · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 1 · Q12
If cos (α+β)=0, then value of cos ((α+β)/2) is equal to:
If $\displaystyle \cos (\alpha+\beta)=0$, then value of $\displaystyle \cos \left(\frac{\alpha+\beta}{2}\right)$ is equal to :
Official answer
(A)
$\displaystyle \frac{1}{\sqrt{2}}$
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CBSE Class 10 Mathematics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.