ALERT: The Legacy WileyPLUS platform retires on July 31, 2021 which means the materials for this course will be invalid and unusable. If you were directed to purchase this product for a course that runs after July 31, 2021, please contact your instructor immediately for clarification. This package includes a three-hole punched, loose-leaf edition of ISBN 9781119273318 and a registration code for the WileyPLUS Learning Space course associated with the text. Before you purchase, check with your instructor or review your course syllabus to ensure that your instructor requires WileyPLUS Learning Space. Note that WileyPLUS Learning Space and traditional WileyPLUS codes are not interchangeable; check with your instructor to be sure that WileyPLUS Learning Space is required. For customer technical support, please visit http://www.wileyplus.com/support. WileyPLUS Learning Space registration cards are only included with new products. Used and rental products may not include registration cards. Trigonometry, 4th Edition brings together all the elements that have allowed instructors and learners to successfully "bridge the gap" between classroom instruction and independent homework by overcoming common learning barriers and building confidence in students' ability to do mathematics. Written in a clear voice that speaks to students and mirrors how instructors communicate in lecture, Young's hallmark pedagogy enables students to become independent, successful learners. Varied exercise types and modeling projects keep the learning fresh and motivating. Young continues her tradition of fostering a love for succeeding in mathematics by introducing inquiry-based learning projects in this edition, providing learners an opportunity to master the material with more freedom while reinforcing mathematical skills and intuition.