If the `p^(t h)` term of an A.P. is `q` and the `q^(t h)` term is `p ,` prove that its `n^(t h)t e r mi s(p+q-n)dot`

Explanation

pth term` = q`

`a+(p−1)d=q`

qth term `= p`

`a+(q−1)d=p`

Solving these equations, we get,

`d=−1`

`a=(p+q−1)`

Thus,
...