\[\int_{{}}^{{}}{\frac{\cos x}{(1+\sin x)(2+\sin x)}\ dx=}\] [Roorkee 1979]

\[\log [(1+\sin x)(2+\sin x)]+c\]

\[\log \frac{2+\sin x}{1+\sin x}+c\]

\[\log \frac{1+\sin x}{2+\sin x}+c\]

\[\int_{{}}^{{}}{\frac{\cos x}{(1+\sin x)(2+\sin x)}\ dx=}\] �

1.	\[\int_{{}}^{{}}{\frac{\cos x}{(1+\sin x)(2+\sin x)}\ dx=}\] [Roorkee 1979]
A.	\[\log [(1+\sin x)(2+\sin x)]+c\]
B.	\[\log \frac{2+\sin x}{1+\sin x}+c\]
C.	\[\log \frac{1+\sin x}{2+\sin x}+c\]
D.	None of these
Answer» D. None of these

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\[\int_{{}}^{{}}{\frac{\cos x}{(1+\sin x)(2+\sin x)}\ dx=}\] [Roorkee 1979]

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