Consider a series `1/2+1/(2^2)+2/(2^3)+3/(2^4)+5/(2^5)+.............+(lambdan)/(2^n).` If `S_n` denotes its sum to `n` tems, then `S_n` cannot be

Consider a series (1)/(2)+(1)/(2^(2))+(2)/(2^(3))+(3)/(2^(4))+(5)/(2^(5))+.........+(lambda n)/(2^(n)) If S_(n) denotes its sum to n tems,then S_(n) cannot be

Find S_n for the series. 1.2 + 2.3 + 3.4 +…

Sum of n terms of the series (2n-1)+2(2n-3)+3(2n-5)+.... is

Sum of n terms of the series (2n-1)+2(2n-3)+3(2n-5)+... is

Sum of n terms of the series (2n-1)+2(2n-3)+3(2n-5)+... is

Sum of the series 1^(2) + 3^(2) + 5^(2) + … + n^(2) is :

Find sum the series (n)/(1.2*3)+(n-1)/(2.3*4)+(n-2)/(3.4*5)+......... up to n terms..-

If the sum of n terms of the series 1/1^3+(1+2)/(1^3+2^3)+(1+2+3)/(1^3+2^3+3^3)+..... is S_n , then S_n exceeds 1.99 for all n greater than

Find S_n for the series. 1.2.3 + 2.3.4 + 3.4.5 +….

If S_(n) denotes the sum of first n terms of the series (9*5^(-2))/(1*2)+(13*5^(-3))/(2*3)+(17*5^(-4))/(3*4)+(21*5^(-5))/(4*5)+.... and T_(r) denotes the r^(th) term of this series,then