If `S_n` the sum of first n terms of an AP is given by `2n^2+n`, then find its nth term.

If the sum of the first n terms of an AP is given by S_n=3n^2-n then find its nth terms, first term and common difference

If s_(n) the sum of first n terms of an A.P, is given by s_(n)=5n^(2)+3n, then find its n^(th) terms.

If s_(n), the sum of first n terms of an A.P.is given by S_(n)=5n^(2)+3n, then find its n^(th) term.

If S_(n) the sum of first n terms of an A.P. is given by Sn = 3n^(2) - 4n , find the nth 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 20 th term.

If the sum of n terms of an A.P. is given by S_(n) =(3n^(2)+2n) , find its n^(th) term.

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

The sum of n terms of an AP is 3n^2+5n ,then find its 16th term.

The sum of first n terms of an AP is given by S_(n)=2n^(2)+3n. Find the sixteenth term of the AP.

If the sum of n terms of an AP is n^2-2n then find its n^(th) term