Find the sum of the following geometric series :
x3, x5, x7, … to n terms
Common Ratio = r = 
∴ Sum of GP for n terms = 
…(1)
⇒ a = x3, r = x2, n = n
∴ Substituting the above values in (1) we get
⇒ 
⇒ 
2
Find the sum of the following geometric series :
x3, x5, x7, … to n terms
Common Ratio = r =
∴ Sum of GP for n terms = …(1)
⇒ a = x3, r = x2, n = n
∴ Substituting the above values in (1) we get
⇒
⇒