" P18.Find the sum to "n" terms of the sequence,"8,88,888,8888

Find the sum to n terms of the series: 8, 88, 888 ,…..

Find the sum of 7 terms of the sequence 2, 6, 18,……

Find the sum of n terms of the following sequences: 8+88+888+……………..up to n terms.

The algebraic form of an arithmetic sequence is 8n+7 . Find the sum of first 30 terms of this sequence.

Find the sum of the sequence 8, 88, 888, 8888, . . . To n terms.

n, 3n, 5n,... is an arithmetic sequence. a) What is the common difference? b) Prove that the sum of first 'n' terms of this sequence is n^(3) . c) Then find the sum of 15 terms of the sequence 15,45,75,…..

Find the nth terms of the following sequences 3, 8, 13, 18, …

Find the sum of n terms of 0.8 + 0.88 + 0.888 + …