\[\int_{0}^{\pi /2}{\frac{\sin x\cos x\,dx}{{{\cos }^{2}}x+3\cos x+2}}=\] [MNR 1981]

\[\log \left( \frac{8}{9} \right)\]

\[\log \left( \frac{9}{8} \right)\]

\[\int_{0}^{\pi /2}{\frac{\sin x\cos x\,dx}{{{\cos }^{2}}x+3\cos x+2}}

1.	\[\int_{0}^{\pi /2}{\frac{\sin x\cos x\,dx}{{{\cos }^{2}}x+3\cos x+2}}=\] [MNR 1981]
A.	\[\log \left( \frac{8}{9} \right)\]
B.	\[\log \left( \frac{9}{8} \right)\]
C.	\[\log (8\times 9)\]
D.	None of these
Answer» C. \[\log (8\times 9)\]

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\[\int_{0}^{\pi /2}{\frac{\sin x\cos x\,dx}{{{\cos }^{2}}x+3\cos x+2}}=\] [MNR 1981]

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