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\int (s e c^{2} θ - \tan^{2} θ) d θ = ক ত ?

θ + c

\tan θ - 2 \log s e c θ + c

θ

\tan^{- 1} θ + \cos θ + c

c o t θ - \sqrt{\tan θ} + c

ANS : 1

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