sum `-2,` -2`1/2`, -3`1/8`,,, to 6 terms.

Sum of -2,2(1)/(2),-3(1)/(8)... upto 6 terms is

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

1,2,3, …… sum to 10 term is ………….

1,2,3…..sum of 20 term is

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

Find the sum : 1+1.2+1.4+1.6+1.8+... (upto 21 terms)

Find the sum: 1 + (1)/(2) (1 + 2) + (1)/(3) (1 + 2 + 3) + ……up to 16 terms.

Find the sum : 1 1/8 - 2 3/4 + 6 2/3

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