[Video Solution] For a suitably chosen real constant a, let afunction, f:R - \left\ - a \righ... | ASPIRE STUDY

For a suitably chosen real constant a, let afunction, f:R - \left\ - a \right\ \to R be defined byf(x) = a - x \over a + x. Further suppose that for any realnumber x \ne - a and f(x) \ne - a, (fof)(x) = x. Then f\left( - 1 \over 2 \right) is equal to : | Watch the step-by-step video solution for this NIMCET PYQ.