\(\mathop {{\rm{lim}}}\limits_{{\rm{x}} \to 0} \frac{{{\rm{si}}{{\rm{n}}^2}{\rm{x}}}}{{\sqrt 2 - \sqrt {1 + {\rm{cos\;x}}} }}\) equals:

\(\mathop {{\rm{lim}}}\limits_{{\rm{x}} \to 0} \frac{{{\rm{si}}{{\rm{n

1.	\(\mathop {{\rm{lim}}}\limits_{{\rm{x}} \to 0} \frac{{{\rm{si}}{{\rm{n}}^2}{\rm{x}}}}{{\sqrt 2 - \sqrt {1 + {\rm{cos\;x}}} }}\) equals:
A.	\(4\sqrt 2\)
B.	\(\sqrt 2\)
C.	\(2\sqrt 2\)
D.	4
Answer» B. \(\sqrt 2\)

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