Mathematics

Mathematics

Problem

∫dx2ex−1=\int \frac{dx}{\sqrt{2e^x-1}}= (a) 2sec⁡−12ex+c2\sec^{-1}\sqrt{2e^x}+c (b) −2tan⁡−112ex−1+c-2\tan^{-1}\frac{1}{\sqrt{2e^x-1}}+c (c) 2sec⁡−1(2ex)+c2\sec^{-1}(\sqrt{2e^x})+c (d) 2tan⁡−12ex−1+c2\tan^{-1}\sqrt{2e^x-1}+c (a) 2sec⁡−12ex+c2\sec^{-1}\sqrt{2e^x}+c (b) −2tan⁡−112ex−1+c-2\tan^{-1}\frac{1}{\sqrt{2e^x-1}}+c (c) 2sec⁡−1(2ex)+c2\sec^{-1}(\sqrt{2e^x})+c (d) 2tan⁡−12ex−1+c2\tan^{-1}\sqrt{2e^x-1}+c

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