The value of \[{{\cos }^{-1}}x+{{\cos }^{-1}}\left( \frac{x}{2}+\frac{1}{2}\sqrt{3-3{{x}^{2}}} \right);\frac{1}{2}\le x\le 1\] is

The value of \[{{\cos }^{-1}}x+{{\cos }^{-1}}\left( \frac{x}{2}+\frac{

1.	The value of \[{{\cos }^{-1}}x+{{\cos }^{-1}}\left( \frac{x}{2}+\frac{1}{2}\sqrt{3-3{{x}^{2}}} \right);\frac{1}{2}\le x\le 1\] is
A.	\[-\frac{\pi }{3}\]
B.	\[\frac{\pi }{3}\]
C.	\[\frac{3}{\pi }\]
D.	\[-\frac{3}{\pi }\]
Answer» C. \[\frac{3}{\pi }\]

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The value of \[{{\cos }^{-1}}x+{{\cos }^{-1}}\left( \frac{x}{2}+\frac{1}{2}\sqrt{3-3{{x}^{2}}} \right);\frac{1}{2}\le x\le 1\] is

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