1.

If s is the sum to infnity of a G.P, whose first term is a, then the sum of the first n terms of the G.P. is

Answer»

`s[1-(1-(a)/(s))^(N)]`
`s(1-(a)/(s))^(n)`
`a[1-(1-(a)/(s))^(n)]`
`(a)/(s)[1-(1-(a)/(s))^(n)]`

ANSWER :A


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