Find the `1+ 1//2+1/4+1/8+… to n `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 of indicated terms of each of the following geometric progression: 1, -1/2, 1/4, - 1/8, .., n terms

Find the sum of the grometric series 1+1/2+1/4+1/8+... to 12 terms.

Find the sum of n terms of the series 1/2.5+1/5.8+1/8.11 …to n terms.

Find the sum of: 24 terms and n terms of 2 (1)/(2) , 3 (1)/(3) , 4 (1)/(6) ,5 ,......,

Find the sum of the series upto n terms ((2n+1)/(2n-1))+3((2n+1)/(2n-1))^2+5((2n+1)/(2n-1))^3+.....

Find the nth terms and the sum to n term of the series : 1.4.7+2.5.8+3.6.9 + ...

find the sum of the series upto n terms 1+(1+2)/(2)+(1+2+3)/(3)+(1+2+3+4)/(4)+

Find the sum of series upto n terms ((2n+1)/(2n-1))+3((2n+1)/(2n-1))^2+5((2n+1)/(2n-1))^3+...

Find the sum of series upto n terms ((2n+1)/(2n-1))+3((2n+1)/(2n-1))^(2)+5((2n+1)/(2n-1))^(3)+