Find the sum of the first 28 terms of the series.

Find the sum of the first 8 terms of the series 2,6,18,54.

Find the sum of the first n-terms of the series. 2+22+222+…..

Find the sum of the first a terms of the series whose nth term is: n(n + 3) .

Find the sum of the first n terms of the series: 0.2 + 0.22 + 0.222+ ....n - terms

Find the sum of the first a terms of the series whose nth term is: 3n^2+5 .

Find the sum of the first n terms of the series whose nth term is n(n+3) .

If the sum of the first n terms of the series

The sum of the first 2012 terms of a geometric progression is 200. The sum of the first 4024 terms of the same series is 380. Find the sum of the first 6036 terms of the series.

Finish The sum of the first 2012 terms of a geometric progression is 200. The sum of the first 4024 terms of the same series is 380. Find the sum of the first 6036 terms of the series. 500, 442, 542, 344

The sum of the first 2012 terms of a geometric progression is 200. The sum of the first 4024 terms of the same series is 380. Find the sum of the first 6036 terms of the series. 500, 442, 542, 344