A condensed, exam-focused study guide for AP® Calculus AB Unit 2: Differentiation, organized by topic (2.1-2.10). A single-PDF reference of the must-know rules, formulas, and common traps, not a full lesson.What's inside:- Every topic 2.1-2.10 summarized in compact, high-impact points- All the core derivative rules (power, product, quotient) and the derivatives of sin, cos, tan, cot, sec, csc, e^x, and ln x- The limit definition and the link between differentiability and continuity- An "Exam Ess