The value of equals

MATHEMATICS · Single correct · ISC · Mathematics · Calculus · Calculus

Problem

The value of lim⁡x→0(2x3(sin⁡−1x−tan⁡−1x))2/x2\displaystyle\lim_{x\to0}\left(\frac{2}{x^3}(\sin^{-1}x-\tan^{-1}x)\right)^{2/x^2} equals (1) ee (2) e\sqrt{e} (3) 1e\frac{1}{e} (4) 1e\frac{1}{\sqrt{e}}

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