Mathematics

Mathematics

Problem

∫dxex+e−x=\int \frac{dx}{e^x + e^{-x}} = A) tan⁡−1(e−x)+c\tan^{-1}(e^{-x}) + c B) tan⁡−1(ex)+c\tan^{-1}(e^x) + c C) log⁡(ex−e−x)+c\log(e^x - e^{-x}) + c D) log⁡(ex+e−x)+c\log(e^x + e^{-x}) + c A) tan⁡−1(e−x)+c\tan^{-1}(e^{-x}) + c B) tan⁡−1(ex)+c\tan^{-1}(e^x) + c C) log⁡(ex−e−x)+c\log(e^x - e^{-x}) + c D) log⁡(ex+e−x)+c\log(e^x + e^{-x}) + c

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