The sum `(3 xx 1^(3))/(1^(2)) + (5 xx (1^(3) + 2^(3)))/(1^(2) + 2^(2)) + (7 xx (1^(3) + 2^(3) + 3^(3)))/(1^(2) + 2^(2) + 3^(2)) +`....

The sum up to 10 terms of the series (3 xx 1^(3))/(1^(2)) + (5 xx (1^(3) + 2^(3)))/(1^(2) + 2^(2)) + (7 xx (1^(3) + 2^(3) + 3^(3)))/(1^(2) + 2^(2) + 3^(2)) + ....

The sum (3xx1^(3))/(1^(2))+(5xx(1^(3)+2^(3)))/(1^(2)+2^(2))+(7xx(1^(3)+2^(3)+3^(3)))/(1^(2)+2^(2)+3^(2))

The sum (3xx1^3)/1^2+ (5xx(1^3+2^3))/(1^2+2^2)+...=

(2^2 xx 3^2 )/(2^(-2)) xx 3^(-1)

1 (4)/(5) xx 2 (2)/(3) xx 3 (1)/(3) xx (1)/(4) =

What is the value of [(1.7)^(3) - (1. 2)^(3)]//[(1 . 7)^(2) + (1. 7 xx 1. 2) + (1.2)^(2)] ?

What is the value of [(1.7)^(3) - (1. 2)^(3)]//[(1 . 7)^(2) + (1. 7 xx 1. 2) + (1.2)^(2)] ?

Show that, (1 xx 2^(2) + 2 xx 3^(2) + ….+ n xx (n+1)^(2))/(1^(2) xx 2 + 2^(2) xx 3 + ….+ n^(2) xx (n+1))= (3n+ 5)/(3n+ 1)

Show that (1 xx 2^(2) + 2 xx 3^(2) + ... +n xx (n + 1)^(2))/(1^(2) xx 2 + 2^(2) xx 3+ ... + n^(2) xx (n + 1)) = (3n + 5)/(3n + 1)

Show that (1 xx 2^(2) + 2 xx 3^(2) + . . . + n xx ( n + 1) ^(2))/( 1 ^(2) xx 2 + 2^(2) xx 3 + . . . + n^(2) xx ( n + 1) ) = ( 3 n + 5)/( 3 n + 1 )