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Mathematics
Mathematics
Problem
Show that the integral part of
(
5
5
+
11
)
2
n
+
1
(5\sqrt{5} + 11)^{2n+1}
(
5
5
+
11
)
2
n
+
1
is even, where
n
∈
N
n \in N
n
∈
N
.
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