Find the sum to indicated number of terms in the geometric progression,
x
3
,x5
,x7
..........n terms (x= ±1).
Answers
Answered by
0
Answer:
Let
S
n
be the sum of n terms of the G.P.
5
7
x 3
Cleraly, the given series is a G.P.
with first term
=
a=
x 3
and common ratio
=
r=
x 2
Then,
S
n
x 3
{
x 2
(x
2
) n
−1
}
=
x 3
(
x 2 − 1
x 2n − 1
)
Similar questions