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Z-Twist books

Trigonometry - expanded Edition

Trigonometry - expanded Edition

Regular price $105.00
Regular price Sale price $105.00
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Welcome to the Life of Fred, a quirky young maths genius who will make you look at learning maths in a whole new way. Your kids will laugh their way through learning maths and keep coming back for more.


The Human Face of Trigonometry

A day and a half in our hero's everyday life.

  • Cuisine! See what dinner in a limo really is like.
  • Entrepreneurship! Learn how to create a best-selling board game.
  • Sports! Witness the boxing match of the century.
  • Fashion! Create a T-shirt to keep you out of the hospital.
  • Trig! All of it. You'll be ready for calculus

This book replaces both Life of Fred: Trigonometry and Fred's Home Companion: Trigonometry. This book has all the problems completely worked out, which wasn't true in the old books. It costs less, too.

Sines, Cosines and Tangents, Graphing, Significant Digits, Trig Functions of Any Angle, Trig Identities, Graphing a sin(bx + c), Radian Measurement, Conditional Trig Equations, Functions of Two Angles, Oblique Triangles, Inverse Trig Functions, Polar Coordinates, Polar Form of Complex Numbers, Preview of all of Calculus.

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