# Pre-Calculus For Dummies

John Wiley & Sons, Jun 26, 2012 - Mathematics - 394 pages
The fun and easy way to learn pre-calculus

Getting ready for calculus but still feel a bit confused? Have no fear. Pre-Calculus For Dummies is an un-intimidating, hands-on guide that walks you through all the essential topics, from absolute value and quadratic equations to logarithms and exponential functions to trig identities and matrix operations.

With this guide's help you'll quickly and painlessly get a handle on all of the concepts — not just the number crunching — and understand how to perform all pre-calc tasks, from graphing to tackling proofs. You'll also get a new appreciation for how these concepts are used in the real world, and find out that getting a decent grade in pre-calc isn't as impossible as you thought.

• Updated with fresh example equations and detailed explanations
• Tracks to a typical pre-calculus class
• Serves as an excellent supplement to classroom learning

If "the fun and easy way to learn pre-calc" seems like a contradiction, get ready for a wealth of surprises in Pre-Calculus For Dummies!

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### Contents

 Introduction 1 Set It Up Solve It Graph It 7 3 Set It Up Solve It Graph It 7 9 Playing with Real Numbers 21 The Building Blocks of PreCalc Functions 33 Digging Out and Using Roots to Graph 67 Playing with Real Numbers 21 Chapter 3 The Building Blocks of PreCalc Functions 33 Chapter 4 Digging Out and Using Roots to Graph Polynomial... 97 The Essentials of Trigonometry 117
 Advanced Identities Your Keys to PreCalc Success 201 Circling in on Angles 119 Chapter 7 Simplifying the Graphing and Transformation of Trig Functions 149 Chapter 8 Identifying with Trig Identities ... 223 Analytic Geometry and System Solving 243 Analytic Geometry and System Solving 246 Plane Thinking Complex Numbers and Polar Coordinates 245 Chapter 12 Slicing Cones or Measuring the Path 261 Streamlining Systems Managing Variables 291 Sequences Series and Expanding Binomials 325 Streamlining Systems Managing Variables 291 Chapter 14 Sequences Series and Expanding Binomials for the Real World 325 Chapter 15 Scouting t... 363

 The Essentials of Trigonometry 120 When the Circle Is Put in Motion 146 Chapter 7 Simplifying the Graphing and Transformation 149 Identifying with Trig Identities The Basics 181