Find the sum of the following geometric progression: 1,3,9,27, to 8 terms.

Find the sum of the following geometric progression: 2,6,18 to 7 terms

Find the sum of the following arithmetic progression: 3,9/3,15/2,.. to terms.

Find the sum of the following arithmetic progressions: 50,46,42, to 10 terms (ii) 1,3,5,7, to 12 terms (iii) 3,9/2,6,15/2,dots to 25 terms

Find the sum of indicated terms of each of the following geometric progression: 1,-3,9,-27, ….9 terms

Find the sum of the following geometric progression: 4,2,1,1/2,quad rarr10 terms.

Find the sum of the following geometric progression: 1,-1/2,1/4,quad -1/8

Find the sum of indicated terms of each of the following geometric progression: 1, 1/3, 1/9, 1/27, …., n terms

Find the sum of indicated terms of each of the following geometric progression: 1,2,4,8,…….,12 terms

Find the sum to infinity of the following geometric progression: 3,-1, 1/3, - 1/9, ……..

Find the sum of indicated terms of each of the following geometric progression: 1+2/3+4/9+….,n terms and 5 terms