9000073007

Level: 
Project ID: 
9000073007
Accepted: 
1
Clonable: 
0
Easy: 
0
Consider a geometric sequence \((a_{n})_{n=1}^{\infty }\). Let \(q\) be the quotient and \(s_{n}\) be the sum of the first \(n\) terms. Given \(a_{1} = -1\: 000\) and \(a_{2} = 100\), find the sum of the first four terms of the sequence.
\(s_{4} = -909\)
\(s_{4} = -900\)
\(s_{4} = 911\)
\(s_{4} = -911\)