Problem : Find the sum of the first 8 terms of the G.P. 3, 2 , 4/3, 8/9, . . . .
Solution :
3, 2 , 4/3, 8/9, . . . .
a = 3, r = 2/3
Sum of the first n terms,
Therefore the sum of the first 8 terms of the G.P. is 8.65.
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