XYZ Series 2012; 590 pp; hardcover Volume: 6 ISBN10: 0979926939 ISBN13: 9780979926938 List Price: US$69.95 Member Price: US$55.96 Order Code: XYZ/6
 This book is a compilation of many suggestions, much advice, and even more hard work. Its main objective is to provide solutions to the problems which were originally proposed in the first 12 chapters of Problems from the Book. The volume is far more than a collection of solutions. The solutions are used as motivation for the introduction of some very clear mathematical expositions. This is absolutely stateoftheart material. Everyone who loves mathematics and mathematical thinking should acquire this book. A publication of XYZ Press. Distributed in North America by the American Mathematical Society. Readership Anyone who loves mathematics and mathematical thinking. Reviews "This is another mathematical pearl by Prof. Andreescu and his colleagues. This is a sequel of the book, "Problems from the Book," and a part of it contains solutions (sometimes, several various solutions) to the first 12 chapters of "Problems from the Book," but there does also exist much, much more. ..."  H. A. Shah Ali Table of Contents  Some useful substitutions
 Always CauchySchwarz ...
 Look at the exponent
 Primes and squares
 \(T_{2}\)'s lemma
 Some classical problems in extremal graph theory
 Complex combinatorics
 Formal series revisited
 A little introduction to algebraic number theory
 Arithmetic properties of polynomials
 Lagrange interpolation formula
 Higher algebra in combinatorics
 Bibliography
