1+(1)/(1+2)+(1)/(1+2+3)+..." to "n" terms "

(1)/(1.2)+(1)/(2.3)+(1)/(3.4)+... to n terms

If 1+(1+2)/(2)+(1+2+3)/(3)+.... to n terms is S.Then,s is equal to

the sum of series 1+(1+2)/(2)+(1+2+3)/(3)+...... to n terms

1/(1.2)+1/(2.3)+1/(3.4)+... to n terms

Sum of the series 1+(1+2)+(1+2+3)+(1+2+3+4)+... to n terms be 1/m n(n+1)[(2n+1)/k+1] then find the value of k+m

(1^(2) )/( 1) + (1^(2) + 2^(2) )/(1+2) + (1^(2) + 2^(2) + 3^(2) )/( 1+ 2+ 3)+ …. + n terms =

If 1 + (1 + 2)/2 + (1 + 2 + 3)/3 + ...... to n terms is s , then s is equal to

1 + (1 +2) + (1 + 2 + 3) + …. To n term is

1+(1+2)/(2)+(1+2+3)/(3) +(1+2+3+4)/(4)+.. . to n terms =

1+(1+2)+(1+2+3)+(1+2+3+4)+ to n terms.