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Question
S2n=3Sn prove that S3n/Sn=6
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Similar Questions
Q1
Prove that S
n
, S
2n
-S
n
, S
3n
-S
2n
, S
4n
-S
3n
are in A.P, find out the common difference.
View Solution
Q2
Sn denotes the sum of first
n
terms of the A.P.
1
,
2
,
3
,
4
,
.
.
.
.
.
.
, then
S
2
n
=
3
S
n
S
3
n
S
n
=
?
View Solution
Q3
Let
S
n
denote the sum of the first n terms of an A.P. If
S
2
n
=
3
S
n
, then
S
3
n
S
n
=
View Solution
Q4
If
S
n
denotes the sum of first
n
terms of an
A
.
P
.
and
S
2
n
=
3
S
n
, then
S
3
n
S
n
is equal to
View Solution
Q5
Let
S
n
denote the sum of first
n
terms of an
A
P
, If
S
2
n
=
3
S
n
then find the ratio
S
3
n
/
S
n
.
View Solution