If the sum of `n` terms of an A.P. is `2n^2+3n` then write its nth term.

If the sum of n terms of an A.P. is 2n^2+5n ,\ then its nth term is a. 4n-3 b. 3n-4 c. 4n+3 d. 3n+4

If sum of first n terms of an A.P is 2n^(2) + 7n, write its nth term.

If the sum of n terms of an A.P. is 2n^(2)+5n , then its n^(th) term

If the sum of first n terms of an A.P. is 3n^(2)-2n , then its 19th term is

The sum of n terms of an A.P. is n^(2) + 3n . Find its 20th term.

If the sum of the first n terms of an A.P. is 1/2(3n^2+7n) , then find its nth term. Hence write its 20th term.

If the sum of n terms of an A.P. is 3n^2 + 2n : Find the rth term.

If the sum of first n terms of an A.P. is 3n^2 + 2n , find its r^(th) term.

If the sum of n terms of an A.P. is S_n=3n^2+5n . Write its common difference.

If the sum of n terms of an A.P is (4n^(2)-3n)/(4) then ,n^(th) term of the A.P