9000073005

Level: 
Project ID: 
9000073005
Accepted: 
1
Clonable: 
0
Easy: 
0
Consider a geometric sequence (an)n=1. Let q be the quotient and sn be the sum of the first n terms. Given a2=1 and a3=10, find the sum of the first four terms of the sequence.
s4=111.1
s4=99.9
s4=111
s4=100