# For x 3 0, 2 æ ö Îç ÷ è ø , let f(x) = x , g(x) = tan x and h(x) = 2 2 1 . 1 x x – + If f (x) = ((hof)og) (x), then f 3 æ ö p ç ÷ è ø is equal to :

Question:

For $x \in\left(0, \frac{3}{2}\right), \operatorname{let} f(x)=\sqrt{x}, \mathrm{~g}(x)=\tan x$ and $h(x)=\frac{1-x^{2}}{1+x^{2}}$ If $\phi(x)=((h o f) o g)(x)$, then $\phi\left(\frac{\pi}{3}\right)$ is equal to :

1. $\tan \frac{\pi}{12}$

2. $\tan \frac{11 \pi}{12}$

3. $\tan \frac{7 \pi}{12}$

4. $\tan \frac{5 \pi}{12}$

Correct Option: 2

JEE Main Previous Year 1 Question of JEE Main from Mathematics Sets, Relations and Functions chapter.
JEE Main Previous Year April 12, 2019 (I)

Solution:

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