Find the sum to indicated number of terms in each of the geometric progressions : `1,-a ,a^2-a^3,dotdotdotn`terms `(if a!=- 1)`

Find the sum to indicated number of terms in each of the geometric progressions : x^3,x^5,x^7,dotdotdotn terms (ifx!=+-1) .

Find the sum to indicated number of terms in each of the geometric progressions : sqrt(7),sqrt(21),7 3, . . . n terms.

Find the sum to indicated number of terms in each of the geometric progressions : 0.15, 0.015, 0.0015, . . . , 20 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: 1,2,4,8,…….,upto 12 terms

Find the sum of indicated terms of each of the following geometric progression: 1, -1/2, 1/4, - 1/8, .., n terms

Find the sum to indicated number of terms in each of the geometric progressions in Questions 7 to 10 : x^(3),x^(5),x^(7),..." n terms "(if x nepm1)

Find the indicated terms in each of the following arithmetic progression 5,2,-1…..t_10

Find the indicated terms in each of the following arithmetic progressions a=21,d=-5,t_n,t_25

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