\[1+\frac{1}{3\,!}+\frac{1}{5\,!}+\frac{1}{7\,!}+.....\infty =\] [MP PET 1991]

\[1+\frac{1}{3\,!}+\frac{1}{5\,!}+\frac{1}{7\,!}+.....\infty =\] [MP P

1.	\[1+\frac{1}{3\,!}+\frac{1}{5\,!}+\frac{1}{7\,!}+.....\infty =\] [MP PET 1991]
A.	\[{{e}^{-1}}\]
B.	\[e\]
C.	\[\frac{e+{{e}^{-1}}}{2}\]
D.	\[\frac{e-{{e}^{-1}}}{2}\]
Answer» E.

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\[1+\frac{1}{3\,!}+\frac{1}{5\,!}+\frac{1}{7\,!}+.....\infty =\] [MP PET 1991]

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