8. If the sum of n terms of an A.P. is (pn + qn^2), where p and q are constants, find the common difference. 8. If the sum of n terms of an A.P. is (pn + qn^2) find the common difference. where P and Q are constants October 27, 2021 Category: Chapter 9 - Sequences and Series , Maths , NCERT Exemplar Class 11 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related