[" 19Find the eam of e terms of the following wer "],[[(4-(1)/(5))+(4-(2)/(n))+(4-(1)/(n))," - "]]

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

Find the sum to n terms of each of the following series : (1)/(1.4) + (1)/(4.7) + (1)/(7.10)+…

Find the sum to n terms of the following series : 3+5xx 1/4+7xx1/4^2 + .....

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

Find the sum of first n terms of the following 1.2.3+2.3.4+3.4.5+….

Find the sum of n terms of the series (1)/(2*4)+(1)/(4*6)+... (A) (n)/(n+1) (B) (n)/(4(n+1)) (C) (1)/((2n)(2n+2))( D) )(1)/(2^(n)(2^(n)+2))

Find the sum to n terms of each of the following series : n.1 + (n-1).2+(n-2). 3+(n-3).4+…

Find the sum of n terms of the series 1+5((4n+1)/(4n-3))+9((4n+1)/(4n-3))^(2)+13((4n+1)/(4n-3))^(3)