JEE MAIN - Mathematics Hindi (2019 - 12th January Morning Slot - No. 17)

$$\mathop {\lim }\limits_{x \to \pi /4} {{{{\cot }^3}x - \tan x} \over {\cos \left( {x + {\pi \over 4}} \right)}}$$ का मान है :
$$8\sqrt 2 $$
4
$$4\sqrt 2 $$
8

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