1.If f(x)=1−x1+xf(x) = \frac{1-x}{1+x}f(x)=1+x1−x, the domain of f−1(x)f^{-1}(x)f−1(x) isa.R\mathbb{R}Rb.R−{−1}\mathbb{R} - \{-1\}R−{−1}c.(−∞,−1)(-\infty, -1)(−∞,−1)d.(−1,∞)(-1, \infty)(−1,∞)Login to continueOnly logged in users canattempt or see the solution.
