- A geometric series has first term \(a\) and common ratio \(r = \frac { 3 } { 4 }\)
The sum of the first 4 terms of this series is 175
- Show that \(a = 64\)
- Find the sum to infinity of the series.
- Find the difference between the 9th and 10th terms of the series. Give your answer to 3 decimal places.