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

Find the sum of the following geometric progression: 4,8,16,32.... to 8 terms

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

Find the sum of the following geometric progression: 4,2,1,1//2, \ to\ 10\ terms.

Find the sum of the following arithmetic progression: 41,36,31,…….to 12 terms.

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

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 the following geometric progression: 1,\ -1//2,\ 1//4,\ -1//8.........

Find the sum of the following geometric series: x^3, x^5, x^7, to\ n terms

Find the sum of the following arithmetic progression: 3,9/2,6,15/2,……….. to 25 terms.

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