1.For a suitably chosen real constant aaa, let a function f:R−{−a}→Rf: \mathbb{R} - \{-a\} \to \mathbb{R}f:R−{−a}→R be defined by f(x)=a−xa+xf(x) = \frac{a-x}{a+x}f(x)=a+xa−x. Further suppose that for any real number x≠−ax \neq -ax=−a and f(x)≠−af(x) \neq -af(x)=−a, (f∘f)(x)=x(f \circ f)(x) = x(f∘f)(x)=x. Then f(−12)f\left(-\frac{1}{2}\right)f(−21) is equal to:Login to continueOnly logged in users canattempt or see the solution.
