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
Along these lines, the amount of
![\[\left( p\text{ }+\text{ }q \right)\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-c8adf8a7f121183e04de933de35f17b3_l3.png "Rendered by QuickLaTeX.com")
terms of the A.P. is
![\[0.\]](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-4fb40a11af7a5f71c0a616a5485d4410_l3.png "Rendered by QuickLaTeX.com")
How about we take
to be the initial term and the normal contrast of the A.P. separately.
Then, at that point, it given that
Along these lines, the amount of
terms of the A.P. is
