if the A.M. between pth and qth terms of an A.P. be equal to the A.M. between rth and sth terms of the A.P., then show that `p+q=r+s`

If the A.M. between p^(th) and q^(th) terms of an A.P. , be equal to the A.M., between m^(th) and n^(th) terms of the A.P. , then show that p + q = m + n .

If the A.M. between mth and nth terms of an A.P. be equal to the A.M. between pth and qth terms of an A.P. then prove that m+n=p+q .

If m times the mth term of an A.P. is equal to n times its nth term, find (m + n) th term of the A.P.:

If the pth term of an A.P. is q and its qth term is p then its mth term is :

If p^(th) term of an A.P.is q and the q^(th) term is p .Find the first term of the A.P.

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

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

the pth term of an A.P is q and and the qth tern is p find the mth term.