1.

\[{{I}_{n}}=\int_{\,0}^{\,\pi /4}{{{\tan }^{n}}x\,dx}\], then \[\underset{n-\infty }{\mathop{\lim }}\,n\,[{{I}_{n}}+{{I}_{n-2}}]\] equals [AIEEE 2002]

A. 44228
B. 1
C. \[\infty \]
D. 0
Answer» C. \[\infty \]


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