The sum of first n terms of an AP is `(5n - n^(2)).` The nth term of the AP is

The sum of first n terms of an A.P.is 5n-n^(2) . Find the nth term of this A.P.

The sum of first n terms of an A.P. is 5n-n^2 . Find the n t h term of this A.P.

The sum of the first n terms of an A.P.is 4n^(2)+2n. Find the nth term of this A.P.

The sum of first n terms of an AP is 4n^(2)+2n Find its n th term.

The sum of first n terms of an A.P. is 5n^(2) + 3n . If the nth term is 168, find the value of n. Also find the 20th term of the A.P.

The sum of the first n terms of an A.P. is 4n^2+2n . Find the n t h term of this A.P.

The sum of the first n terms of an A.P. is 3n^2+6n . Find the n t h term of this A.P.

If sum of first n terms of an AP is 2n^(2)+5n. Then find S_(20)

The sum of the first n terms of an A.P. is 3n^2+6n . Find the n^(th) term of this A.P.

If the sum of first n terms of an A.P. is given by S=3n^(2)+4n. Determine the A.P. and the n^(th) term.