Precalculusde Cohen, DavidMateriasPrecalculusProblem solvingEdiciones (1)Precalculus (1999)West Publishing Company · inglés · ISBN 9780314778710Más obras de Cohen, DavidPPrecalculus with unit-circle trigonometryPrecalculus with unit-circle trigonometryStudent's solutions manual to accompany Precalculus, a problems-oriented approachPrecalculus