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Mathematics · 2023 · 1 mark
CBSE 2023 · Region 2 · Set 1 · Q13
Anti-derivative of (tan x-1)/(tan x+1) with respect to x is
Anti-derivative of $\displaystyle \frac{\tan x-1}{\tan x+1}$ with respect to $\displaystyle x$ is
Official answer
(C)
$\displaystyle \log \left|\sec \left(\frac{\pi}{4}-x\right)\right|+\mathrm{c}$
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CBSE Class 12 Mathematics past-paper question from the 2023 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.