JEE Main 2025January, Unspecified (session-level dataset)MathematicsMediumSets, Relations and Functions168× since 2002The function f:(−∞,∞)→(−∞,1)f : (-\infty, \infty) \to (-\infty, 1)f:(−∞,∞)→(−∞,1), defined by f(x)=2x−2−x2x+2−xf(x) = \frac{2^x - 2^{-x}}{2^x + 2^{-x}}f(x)=2x+2−x2x−2−x, is:AOption A. Neither one-one nor ontoBOption B. Onto but not one-oneCOption C. Both one-one and ontoDOption D. One-one but not ontoCheckSkip · show solution
