If the pth term of an arithmetic progression is q and the qth term is p, show that its (p+q)th term is 0.

If P-th term of an arithmetic progression be Q and Q-th term be P.then show that (P+Q)thterm is O.

If the pth term of a H.P. be q and the qth term be equal to p, show that, its (p + q)th term is (pq)/(p+q) .

The middle term of an arithmetic progression having (2n+1) terms is m, show that the sum of its (2n+1) terms is (2n+1)m.

If the pth term of an A.P. is q and the qth term is p , then find its rth term.

The rth terms of an A.P is n and it's nth term is r, show that its mth term is r+n - m.

The first term of an arithmetic progression is 1 and the sum of the first nine terms equal to 369 . The first and the ninth term of a geometric progression coincide with the first and the ninth term of the arithmetic progression. Find the seventh term of the geometric progression.

if the Pth term of an A.P. is q and qth term is P.Then show that the nth term is p+q-n

The sum of first 5 terms of an arithmetic progression is 80,third term will be __

If the sixth term of an H.P. is 10 and the 11th term is 18 Find the 16th term.

The sum of n terms of two arithmetic progressions are in the ratio 5n+4:9n+6. Find the ratio of their 18th terms.