1.

\[\frac{\frac{1}{2\,!}+\frac{1}{4\,!}+\frac{1}{6\,!}+.....\infty }{1+\frac{1}{3\,!}+\frac{1}{5\,!}+\frac{1}{7\,!}+.....\infty }=\]

A. \[\frac{e+1}{e-1}\]
B. \[\frac{e-1}{e+1}\]
C. \[\frac{{{e}^{2}}+1}{{{e}^{2}}-1}\]
D. \[\frac{{{e}^{2}}-1}{{{e}^{2}}+1}\]
Answer» C. \[\frac{{{e}^{2}}+1}{{{e}^{2}}-1}\]


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