1.

\[\int_{-\,\pi /2}^{\,\pi /2}{\,\frac{\sin x}{1+{{\cos }^{2}}x}{{e}^{-{{\cos }^{2}}x}}dx}\] is equal to [AMU 1999]

A. \[2{{e}^{-1}}\]
B. 1
C. 0
D. None of these
Answer» D. None of these


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