Precalculus a unit circle approach second edition offers the best of both worlds rigorous topics and a friendly teacherly tone note this is the standalone book if you want the book access card please order the isbn below. Precalculus a unit circle approach offers rigorous topics ideal for students heading for calculus in a friendly teacherly tone functions are presented in chapter 1 building a foundation for a strong preparation for calculus trigonometric functions are introduced in chapter 4 with a unit circle approach before developing the right triangle. Precalculus a unit circle approach 2nd edition ratti j s mcwaters marcus s 9780321825391 books amazonca. Coupon rent precalculus a unit circle approach 2nd edition 9780321825391 and save up to 80 on textbook rentals and 90 on used textbooks get free 7 day instant etextbook access. best book precalculus a unit circle approach 2nd edition uploaded by louis l amour precalculus a unit circle approach offers rigorous topics ideal for students heading for calculus in a friendly teacherly tone functions are presented in chapter 1 building a foundation for a strong preparation for calculus trigonometric functions are