If `S_n=n P+(n(n-1))/2Q ,w h e r eS_n` denotes the sum of the first `n` terms of an A.P., then find the common difference.

If S_(n)=nP+(n(n-1))/(2)Q, where S_(n) denotes the sum of the first n terms of an A.P.then find the common difference.

If S_(n) = nP + (n (n - 1))/(2) Q where S_n denotes the sum of the first n terms of an A.P. , then the common difference is

The sum of n terms of an A.P is n^2 .Find the common difference.

The sum to n terms of an A.P. is n^(2) . Find the common difference.

If the sum of n terms of an A.P. is 3n + 2n^(2) , find the common difference

If the sum of n terms of an A.P is S_n=3n^2+5n then find the Common difference:

The sum of first n terms of an A.P. is 5n ^(2)+ 4n, its common difference is :

The sum of first n terms of an A.P. is 5n ^(2)+ 4n, its common difference is :