Question: The sum, Sn,
of the first n terms of a
sequence is given by Sn =
pn + qn², where p and q are constants. Prove that the sequence is
an arithmetic progression, and hence, find the first term and
common difference.
Answer for first term and common difference is p+q and 2q. No
matter how I do. My answer is p and q. Anyone who can help
me?
