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Mathematics
Problem
In the expansion of
(
2
+
x
)
n
(2+x)^{n}
(
2
+
x
)
n
, the coefficients of
x
5
x^{5}
x
5
and
x
6
x^{6}
x
6
are equal. Find
n
n
n
. a)
18
18
18
b)
17
17
17
c)
16
16
16
d)
19
19
19
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