Complex Numbers, Theory of Equations, Sequences and Series, Permutations and Combinations, and Binomial Theorem.
Never look at the solution immediately. Spend at least 30 to 45 minutes struggling with a single problem. This "struggle" is where the actual learning happens. Complex Numbers, Theory of Equations, Sequences and Series,
A. Das Gupta’s book isn't just a collection of questions; it is a structured mental workout. Unlike standard textbooks that focus on rote formulas, Problems Plus emphasizes: Theory of Equations