MathematicsMedium110×since 2002Q3819For x ∈\in∈ (0, 3/2), let f(x) = x\sqrt xx , g(x) = tan x and h(x) = 1−x21+x2{{1 - {x^2}} \over {1 + {x^2}}}1+x21−x2. If ϕ\phiϕ (x) = ((hof)og)(x), then ϕ(π3)\phi \left( {{\pi \over 3}} \right)ϕ(3π) is equal to :Atan7π12\tan {{7\pi } \over {12}}tan127πBtan11π12\tan {{11\pi } \over {12}}tan1211πCtanπ12\tan {\pi \over {12}}tan12πDtan5π12\tan {{5\pi } \over {12}}tan125πCheck answerSkip