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Mathematics
Mathematics
Problem
Find the sum of the first
(
n
)
(n)
(
n
)
terms of a geometric progression whose first term is
(
a
)
(a)
(
a
)
and common ratio is
(
r
,
r
≠
1
)
(r, r \neq 1)
(
r
,
r
=
1
)
.
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