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S(n) is the sum of n terms of an A.P. If...

`S_(n)` is the sum of n terms of an A.P. If `S_(2n)= 3S_(n)` then prove that `(S_(3n))/(S_(n))= 6`

A

4

B

6

C

8

D

10

Text Solution

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The correct Answer is:
B
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