# Let f: R –{1} $\rightarrow$ R be defined by $f(x) = \large\frac{x+1}{x-1}$ where x $\neq$ 1. Find f(2), f $\bigg( \large\frac{1}{2} \bigg)$ , f($\pi$), f(3) and f $\bigg( \large\frac{1}{3} \bigg)$

$f(2) = 1, f(1/2) = -3,f ( \pi )= \large\frac{x+1}{x-1}$$, f(3)=2 \: f \bigg( \large\frac{1}{3} \bigg)$$=-2$