Level:
Project ID:
9000073004
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 \(a_{1} = 1\),
\(a_{3} = 4\) and
\(a_{2} < 0\), find
the sum of the first four terms of the sequence.
\(s_{4} = -5\)
\(s_{4} = 15\)
\(s_{4} = 14\)
\(s_{4} = 8\)