MathematicsMedium175×since 2002Q2718Let f be a real valued function, defined on R −-− {−-−1, 1} and given by f(x) = 3 log_e ∣x−1x+1∣−2x−1\left| {{{x - 1} \over {x + 1}}} \right| - {2 \over {x - 1}}x+1x−1−x−12. Then in which of the following intervals, function f(x) is increasing?A(−-−∞\infty∞, −-−1) ∪\cup∪ ([12,∞)−{1})\left( {[{1 \over 2},\infty ) - \{ 1\} } \right)([21,∞)−{1})B(−-−∞\infty∞, ∞\infty∞) −-− {−-−1, 1)C(−-−∞\infty∞, 12{{1 \over 2}}21] −-− {−-−1}D(−-−1, 12{{1 \over 2}}21]Check answerSkip