https://castudynotes.com/2022/04/16/ca-foundation-paper-3-business-mathematics-lr-and-statistics-chapter-8-basic-concepts-of-differential-and-integral-calculus-notes-charts-lectures-all-compilation-at-one-place-in-pdf/
CA Foundation Paper 3: Business Mathematics, LR and Statistics : Chapter 8: Basic Concepts of Differential and Integral Calculus Notes, Charts & Lectures All Compilation AT One Place in PDF