If \( y=\tan ^{-1}\left(\frac{e^{2 x}+1}{e^{2 x}-1}\right) \), prove that : \( \frac{d y}{d x}=-...
If \( y=\tan ^{-1}\left(\frac{e^{2 x}+1}{e^{2 x}-1}\right) \), prove that : \( \frac{d y}{d x}=-\frac{2 e^{2 x}}{1+e^{4 x}} \)
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