If the first term of a G.P. is 3 and the common ratio is 2, then the sum of first five to ten
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Originally Answered: If the 3rd and 5th term of a GP are 2 and 1/2 respectively, what is the sum of the 1st 5 terms of the GP? The n th term of a GP is a.r^(n - 1). Therefore, the 3rd term is a.r^2 and the 5th term is a.r^4 respectively. PS: You may just add 8 + 4 + 2 + 1 + 0.5.
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