[" Sum of first "n" terms is "(3n^(^^***)2^(***)/],[2)+(13n/2)," find the "25" th term."]

In an A.P.the sum of first n terms is (3n^(2))/(2)+(13)/(2)n. Find its 25th term.

In an A.P.the sum of first n terms is (3n^(2))/(2)+(5n)/(2). Find its 25 th term.

In an A.P., the sum of first n terms is (3n^2)/2+(13)/2n . Find its 25 t h term.

(i) The sum of the first n terms of an AP is ((5n^(2))/(2) + (3n)/(2)) . Find the nth term and the 20th term of this AP. (ii) The sum of the first n terms of an AP is ((3n^(2))/(2) + (5n)/(2)). Find its nth term and the 25th term.

In an A.P., the sum of first n terms is (3n^2)/2+(5n)/2dot Find its 25th term.

If sum of n terms in an A.P is ((5n^2)/2+(3n)/2) then 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 20 th term.

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

In an A.P.,the sum of first n terms is 3n^2/2+5n/2 .Find its 25th term.Also determine its first term and C.D.

The sum of first n terms of an A.P. is 3n^2+4n . Find the 25 t h term of this A.P.