All the terms of a geometric series are positive. The sum of the first two terms is 34 and the sum to infinity is 162
Find
the common ratio,
the first term.
(ii) A different geometric series has a first term of 42 and a common ratio of \(\frac { 6 } { 7 }\).
Find the smallest value of \(n\) for which the sum of the first \(n\) terms of the series exceeds 290