Sum Of N Terms Of An A.P.

Questions on Sum of n terms in A.P.

Questions on Sum of n terms in A.P.

If S_(1),S_(2),......,S_(p) are the sums of n terms of an A.P

If the sum of m terms of an A.P, is equal to the sum of n terms of the A.P ., then the sum of (m + n) terms is

The sum to n terms of an A.P. is n^(2) . Find the common difference.

Find the sum to n terms of an A.P. whose nth terms is t_n=5+6n,n in N.

If for every n in N , sum to n terms of an A.P. is 5n^(2)+7n then is 10th term is

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

Consider the A.P. 18,15,12.... Find the sum to n terms of the A.P.

Find the sum to 'n' terms of an A.P. whose 7^(th) term is 30 and 13^(th) term is 54.