" The sum of first "n" terms of an A.P.is "5n^(2)+3n^(2)+3n" .If its mtherm is "168," find the value of "m

The sum of first n terms of an A.P.is 5n^(2)+3n If its mth term is 168,(i) Find the value of m (ii) Find the 20th term of this AP

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 first n terms of an AP is 5n^2 + 3n If its mth term is 168, find the value of m. Also find the 20th term of the AP.

The sum of first n terms of an A.P. is 5n^2+3n If its mth term is 168, (i) Find the value of m (ii) Find the 20th term of this AP

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

If the sum of n terms of an A.P.is 3n^(2)+5n and its mth term is 164, find the value of m .

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

If the sum of n terms of an A.P. is 3n^(2)+5n and its mth term is 164, find the value of m.

If the sum of n terms of an A.P. is 3n^(2) + 5n and its m^(th) term is 164, find the value of m .

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