Essentials of Trigonometry (with CD-ROM and iLrnTM Tutorial) (Available Titles Cengagenow)

Easy-to-understand, ESSENTIALS OF TRIGONOMETRY starts with the right-angle definition, and applications involving the solution of right triangles to help you investigate and understand the trigonometric functions, their graphs, their relationships to one another, and ways in which they can be used in a variety of real-world applications. The accompanying CD-ROM and online tutorials give you the practice you need to improve your grade in the course.