1.

Find the derivatives of the following functions:(I) [(√x+1)/(√x-1)](II) [(secx+tanx)/(secx-tanx)](III) [(1+u+u²)/(1-u+u²)]

Answer» Find the derivatives of the following functions:
(I) [(√x+1)/(√x-1)]
(II) [(secx+tanx)/(secx-tanx)]
(III) [(1+u+u²)/(1-u+u²)]


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