Every HSC topper will tell you: complete the miscellaneous exercise of each chapter. The board exam often picks 1-2 "out-of-the-box" problems from these sections. Since the PDF is searchable, gather all miscellaneous problems into a single document for intensive practice.
Websites like Byju's , Vedantu , and Toppr often host curated links to official textbook PDFs. While these are convenient, always cross-check the edition year to ensure you are studying the latest syllabus. hsc maths part 2 textbook pdf