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

\[1+\frac{1+3}{2\,!}+\frac{1+3+5}{3\,!}+\frac{1+3+5+7}{4\,!}+.......\i

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

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

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