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

1.	\[1+\frac{3}{1\,!}+\frac{5}{2\,!}+\frac{7}{3\,!}+....\infty =\]
A.	\[e\]
B.	\[2\,e\]
C.	\[3\,e\]
D.	\[4\,e\]
Answer» D. \[4\,e\]

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

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