"We must learn, and we will learn." With this statement, David Hilbert, one of the greatest mathematicians of his generation, called on his colleagues to solve the unsolved problems that plagued the mathematical community at that time. However, behind this proposition, Hilbert also hid the belief that there is nothing "dark" and unsolvable in mathematics.

With this book, we aim to show students that there are no dead ends or difficult paths in mathematics. With proper guidance, we can approach and successfully tackle all the problems that arise.

The methodology presented in this book is written in such a way that the student has the appropriate "tools" in their hands to solve exercises at every level.

The large number of exercises we have included covers all the forms that students may encounter during the school year.

Considering that success ultimately depends on organized and systematic revision, we have included review topics and tests at the end of each chapter, as well as at the end of the book, structured in such a way as to cover all the cases discussed in the chapters that were taught.