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Mathematics
Problem
8. If
a
,
b
,
c
,
d
a, b, c, d
a
,
b
,
c
,
d
are in G.P, prove that
(
a
n
+
b
n
)
,
(
b
n
+
c
n
)
,
(
c
n
+
d
n
)
\left(a^{n}+b^{n}\right),\left(b^{n}+c^{n}\right),\left(c^{n}+d^{n}\right)
(
a
n
+
b
n
)
,
(
b
n
+
c
n
)
,
(
c
n
+
d
n
)
are in G.P.
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