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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 3 · Set 1 · Q10
∫ dx/(2^x +2^- x) is equal to:
$\displaystyle \int \frac{\mathrm{dx}}{2^{\mathrm{x}}+2^{-\mathrm{x}}}$ is equal to :
Official answer
(C)
$\displaystyle \frac{\tan ^{-1}\left(2^{\mathrm{x}}\right)}{\log 2}+\mathrm{C}$
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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.