If the `p^(th)` term of a H.P. ne 'qr' and the `q^(th)` term be 'rp' . Prove that its `n^(th)` term is pq.

If the p^(th) term of an A.P.is q and the q^(th) term is p, prove that its n^(th)term is(p+q-n)

If the p^(th) term of an A.P is q and q^(th) term is p, prove that its n^(th) term is (p+q-n)

If the m^(th) term of an H.P. is n and the n^(th) term is m, show that its (mm)^(th) term is 1.

If the n^(th) term of an A.P is (5n-2) ,find its 19^(th) term

The p^(th) term of an A.P.is a and q^(th) term is b . Prove that the sum of its (p+q) terms is (p+q)/(2){a+b+(a-b)/(p-q)}

If the 7^(th) terms of a H.P. is 8 and the 8^(th) term is 7. Then find the 28^(th) term

If the m^(th) term of a H.P.be n and n^(th) term be m,then the r^(th) term will be: