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The authors learned a lot of mathematics from the problems encountered in various Romanian national contests. This is something that stayed with th...

The main purpose of this book is to provide an introduction to central topics in elementary algebra from a problem-solving point of view. While wor...

This book represents a collection of carefully selected geometry problems designed for passionate geometers and students preparing for the IMO. Ass...

This book contains ten frequently recurring themes in algebraic problems.Each chapter starts with a brief introduction that includes examples usefu...