Obtain the differential coefficient of the following:
`(1+x)/(1-x)`

Explanation

To find the differential coefficient of the function \( y = \frac{1+x}{1-x} \), we will use the quotient rule of differentiation. The quotient rule states that if you have a function in the form of \( \frac{u}{v} \), then its derivative is given by:

\[ \frac{dy}{dx} = \frac{v \frac{du}{dx} - u \frac{dv}{dx}}{v^2} \]

where \( u = 1+x \) and \( v = 1-x \).

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