\[\int_{\pi /3}^{\pi /2}{\frac{\sqrt{1+\cos x}}{{{(1-\cos x)}^{\frac{5}{2}}}}}\,dx=\] [AI CBSE 1980]

\[\int_{\pi /3}^{\pi /2}{\frac{\sqrt{1+\cos x}}{{{(1-\cos x)}^{\frac{5

1.	\[\int_{\pi /3}^{\pi /2}{\frac{\sqrt{1+\cos x}}{{{(1-\cos x)}^{\frac{5}{2}}}}}\,dx=\] [AI CBSE 1980]
A.	\[\frac{5}{2}\]
B.	\[\frac{3}{2}\]
C.	\[\frac{1}{2}\]
D.	\[\frac{2}{5}\]
Answer» C. \[\frac{1}{2}\]

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\[\int_{\pi /3}^{\pi /2}{\frac{\sqrt{1+\cos x}}{{{(1-\cos x)}^{\frac{5}{2}}}}}\,dx=\] [AI CBSE 1980]

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