The sum of infinite series \(1+ \dfrac{2^2}{2!} + \dfrac{3^2}{3!}+\dfrac{4^2}{4!}+....\infty\) is

The sum of infinite series \(1+ \dfrac{2^2}{2!} + \dfrac{3^2}{3!}+\dfr

1.	The sum of infinite series \(1+ \dfrac{2^2}{2!} + \dfrac{3^2}{3!}+\dfrac{4^2}{4!}+....\infty\) is
A.	∞
B.	e
C.	2e
D.	\(\rm 1+\dfrac{1}{e}\)
Answer» D. \(\rm 1+\dfrac{1}{e}\)