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Problem
Problem
For
n
∈
N
n \in \mathbb{N}
n
∈
N
, let
x
n
x_n
x
n
be defined as
(
1
+
1
n
)
(
n
+
x
n
)
=
e
\left( 1 + \frac{1}{n} \right)^{(n+x_n)} = e
(
1
+
n
1
)
(
n
+
x
n
)
=
e
, then
lim
n
→
∞
(
2
x
n
)
\lim_{n \to \infty} (2x_n)
lim
n
→
∞
(
2
x
n
)
equals .....
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