Find the sum of the following geometric series :
to 2n terms;
Common Ratio = 
∴ Sum of GP for n terms = 
…(1)
⇒ 
, 
, n = 2n
∴ Substituting the above values in (1) we get
⇒ 
⇒ 
⇒ 
2
Find the sum of the following geometric series :
to 2n terms;
Common Ratio =
∴ Sum of GP for n terms = …(1)
⇒ , , n = 2n
∴ Substituting the above values in (1) we get
⇒
⇒
⇒