If p times the pth term of an A.P. is equal to q times the qth term then show that is (p+q)th term is zero.

If six times the sixth term of an A.P. is equal to nine times the ninth term, then show that its 15^(th) term is zero ?

If 7 times the 7th term of an A.P. is equal to 11 times its 11th term, show that the 18th term of the A.P. is zero.

If 5 times the 5^(th) term of an A.P. is equal to 7 times the 7^(th) term, find its 12^(th) term.

If m times the mth term is equal to n times the nth term of an A.P. prove that(m+n)th term of an A.P. is zero.

In a certain A.P., 5 times the 5th term is equal to 8 times the 8th terms then find its 13th term.

If the sum of first p terms of an A.P. is equal to the sum of the first q terms, then find the sum of the first (p+ q) terms.

Find the 6th term of A.P if a=1 , d=2

Find the 5th term of A.P if a=1 , d=2