Librería Samer Atenea
Librería Aciertas (Toledo)
Kálamo Books
Librería Perelló (Valencia)
Librería Elías (Asturias)
Donde los libros
Librería Kolima (Madrid)
Librería Proteo (Málaga)
We have tried to make this edition of Trigonometry useful to students in a variety of programs. Forexample, students who have encountered elements of triangle trig in previous courses may be ableto skip all or part of Chapters 1 through 3. Students preparing for technical courses may not needmuch of the material after Chapter 6 or 7. Chapters 9 and 10 cover vectors and polar coordinates,optional topics that occur in some trigonometry courses but are often reserved for precalculus.