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Power Series
hard
0:00.0
Evaluate
∑
n
=
0
∞
3
n
n
!
\sum_{n=0}^{\infty} \frac{3^n}{n!}
∑
n
=
0
∞
n
!
3
n
.
A
e
e
e
B
e
3
e^3
e
3
C
3
e
3e
3
e
D
e
1
/
3
e^{1/3}
e
1/3
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