\[\int_{0}^{\pi }{\frac{x\,\tan x}{\sec x+\cos x}}\,dx=\] [MNR 1985; BIT Ranchi 1986; UPSEAT 2002]

\[\int_{0}^{\pi }{\frac{x\,\tan x}{\sec x+\cos x}}\,dx=\] [MNR 1985; B

1.	\[\int_{0}^{\pi }{\frac{x\,\tan x}{\sec x+\cos x}}\,dx=\] [MNR 1985; BIT Ranchi 1986; UPSEAT 2002]
A.	\[\frac{{{\pi }^{2}}}{4}\]
B.	\[\frac{{{\pi }^{2}}}{2}\]
C.	\[\frac{3{{\pi }^{2}}}{2}\]
D.	\[\frac{{{\pi }^{2}}}{3}\]
Answer» B. \[\frac{{{\pi }^{2}}}{2}\]

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\[\int_{0}^{\pi }{\frac{x\,\tan x}{\sec x+\cos x}}\,dx=\] [MNR 1985; BIT Ranchi 1986; UPSEAT 2002]

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