Fourth Edition. 1974. Hardcover. McGraw-Hill Book Company. 325 pages. Some surface/edge wear to cover. Some writing inside. - Disclaimer: May have a different cover image than stock photos shows, as well as being a different edition/printing, unless otherwise stated. Please contact us if you're looking for one of these specifically. Your order will ship with FREE Delivery Confirmation (Tracking). We are a family business, and your satisfaction is our goal! Additional Details ------------------------------ Product description: This revision of a best-selling plane trigonometry text for freshmen and sophomores maintains the trademarks of clear, concise exposition coupled with graded problems. The result is a fresh and modern version of a classic text. Major changes include an emphasis on the use of calculators and calculator-related exercises, the use of radian measures appearing after Chapter 5 to help prepare students for analytic geometry or calculus, the expansion of Chapter 9 to include more applications as well as the addition of polar, exponential functions, and a greater emphasis on graphing.