Precalculus: A Unit Circle Approach gives you the strength of solid
mathematics in an engaging, friendly way. It draws from the authors'
extensive classroom experience to connect conceptual understanding while
maintaining the level of mathematics required. In the 4th Edition
new resources lift you to reach your full potential, including Key Ideas
for the next section, objective video and note-taking guides, and much
more. Nationally recognized instructors Jessica Bernards and Wendy Fresh
join the author team to add fresh perspective to this revision.