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Functions question

2019 · 12 Apr · Shift 1 · Q27
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  5. /2019 · 12 Apr · Shift 1 · Q27

Functions question

2019 · 12 Apr · Shift 1 · Q27

JEE MainMathematicsFunctionsMCQ+4 / −1
For 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 :
  1. A
    tan⁡7π12\tan {{7\pi } \over {12}}tan127π​
  2. B
    tan⁡11π12\tan {{11\pi } \over {12}}tan1211π​
  3. C
    tan⁡π12\tan {\pi \over {12}}tan12π​
  4. D
    tan⁡5π12\tan {{5\pi } \over {12}}tan125π​
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