Solution:-
How about we take
![\[a\text{ }and\text{ }d\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-9c94af1d8caa228a784d71e27a045649_l3.png "Rendered by QuickLaTeX.com")
to be the initial term and the normal contrast of the A.P. separately.
Then, at that point, it given that
Sum of the first p, q and r terms of an A.P. are a, b and c, respectively. Prove that
Sum of the first p, q and r terms of an A.P. are a, b and c, respectively. Prove that