$\mathop {\lim }\limits_{x \to 0} {{{{\sin }^2}x} \over {\sqrt 2 - \sqrt {1 + \cos x} }}$ equals: - DASH

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Question

$\mathop {\lim }\limits_{x \to 0} {{{{\sin }^2}x} \over {\sqrt 2 - \sqrt {1 + \cos x} }}$ equals:

$ \sqrt 2$

$2 \sqrt 2$

4

$4 \sqrt 2$

Solution

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