\[\int_{0}^{\pi /2}{\frac{1+2\cos x}{{{(2+\cos x)}^{2}}}=}\] [CEE 1993]

\[\int_{0}^{\pi /2}{\frac{1+2\cos x}{{{(2+\cos x)}^{2}}}=}\]

1.	\[\int_{0}^{\pi /2}{\frac{1+2\cos x}{{{(2+\cos x)}^{2}}}=}\] [CEE 1993]
A.	\[\frac{\pi }{2}\]
B.	\[\pi \]
C.	\[\frac{1}{2}\]
D.	None of these
Answer» D. None of these

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\[\int_{0}^{\pi /2}{\frac{1+2\cos x}{{{(2+\cos x)}^{2}}}=}\] [CEE 1993]

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