JEE MAIN - Mathematics Hindi (2021 - 24th February Evening Shift - No. 10)
$$\tan \left(\frac{1}{4} \sin ^{-1} \frac{\sqrt{63}}{8}\right)$$ का एक सम्भावित मान है :
$$\sqrt 7 - 1$$
$${1 \over {\sqrt 7 }}$$
$$2\sqrt 2 - 1$$
$${1 \over {2\sqrt 2 }}$$
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