Problem:
Compute the following expression: $\sum_{k=0}^6 -\frac{98}{19}\frac{1}{\sqrt{5}}^k$
Answer:
$-\frac{15288}{2375}-\frac{3038}{475 \sqrt{5}}$
{'source': 'AMPS', 'file': 'amps/mathematica/algebra/geometric_series/34954.txt'}