Find the `1+ 1//2+1/4+1/8+… to n `terms

Find 1+1/2+1/4+1/8+ …. Upto oo .

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 the following series : (1)/(4) + (1)/(2) + 1 + … to n terms

Find 1+ 1/(1+2)+1/(1+2+3)+….. to n terms.

Find 1+ 1/2+1/4+1/8+……….to oo

Find the sum of the GP: (i) 1+3+9+27+... to 7 terms (ii) 1+sqrt(3)+3+3sqrt(3)+... to 10 terms (iii) 0.15+0.015+0.0015+... to 6 terms (iv) 1-1/2+1/4-1/8+... to 9 terms (v) sqrt(2)+1/sqrt(2)+1/(2sqrt(2))+... to 8 terms (vi) 2/9-1/3+1/2-3/4+... to 6 terms

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 nth term and the sum of n terms of the series 1.2.4+2.3.5+3.4.6+....