.) Find the sum of the first n terms of the geometric sequence for the values of a1and r. n = 4, a1 = 228, r = 4.8 A. 25,167.476 B. 6575.52 C. 25,214.976 D. 31,790.496

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asked Aug 8, 2017 53.6k views

2 votes

.) Find the sum of the first n terms of the geometric sequence for the values of a1and r.

n = 4, a1 = 228, r = 4.8

A. 25,167.476

B. 6575.52

C. 25,214.976

D. 31,790.496

Mathematics
high-school

Patel Dhaval R asked

by Patel Dhaval R

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1 Answer

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Sn = a(r^n - 1)/(r - 1) = 228(4.8^4 - 1)/(4.8 - 1) = 228(530.8416 - 1)/3.8 = 228(529.8416)/3.8 = 120,803.8848/3.8 = 31,790.496

Stefan Manastirliu answered Aug 14, 2017

by Stefan Manastirliu

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