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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 2 · Set 2 · Q1
∫ (d x)/(1+ cos x) is equal to
$\displaystyle \int \frac{\mathrm{d} x}{1+\cos x}$ is equal to
Official answer
(D)
$\displaystyle \tan \frac{x}{2}+\mathrm{C}$
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CBSE Class 12 Mathematics past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.