## Precalculus the Easy WayAn experienced math instructor and teacher trainer helps to make PreCalculus easy--even for students who feel intimidated by more advanced math topics. His orderly, step-by-step approach begins with concepts and skills typically introduced in a first-year high-school-level algebra course then progresses to advanced algebra and trigonometry, needed for the study of calculus. The lesson format and step-by-step demonstration examples are designed for self-teaching and rapid learning. Special math tips help resolve student difficulties and are strategically located throughout the text. Major topics include: algebra; graphs and graphing calculator methods; complex numbers; polynomial and rational functions; exponential and logarithmic functions; fitting lines and curves to data; trigonometry and polar coordinates; conic sections and parametric equations; counting and probability; binomial theorem; and probabilities. Check-up exercises at the end of each chapter help students monitor their progress. |

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Contents

ALGEBRA AND GRAPHING METHODS | 1 |

Rational and Irrational Expressions | 31 |

Graphing and Systems of Equations | 53 |

Functions and Quadratic Equations | 87 |

Chapter5 Complex Numbers and the Quadratic Formula | 119 |

FUNCTIONS AND THEIR GRAPHS | 135 |

Polynomial and Rational Functions | 167 |

Exponential and Logarithmic Functions | 205 |

Graphing Trigonometric Functions | 267 |

Trigonometric Identities and Equations | 295 |

Solving Triangles | 317 |

POLAR COORDINATES | 337 |

Conic Sections and Their Equations | 361 |

NUMBER PATTERNS AND COUNTING | 403 |

Answers to Checkup Exercises | 435 |

458 | |

### Common terms and phrases

AABC accompanying figure algebraic arithmetic sequence asymptotes binomial CHECKUP EXERCISES circle coefficients complex number conic section cosx curve Decimal window defined degree denominator Determine directrix distance Divide divisor domain ellipse equivalent evaluate example Exercise 2 Finding exponent exponential focal axis foci fraction function f geometric sequence given graphing calculator Hence horizontal hyperbola inequality integer intersection interval inverse functions KEY IDEAS Law of Cosines Law of Sines length Lesson linear factors located mathematical induction monomial multiply nearest tenth negative nth roots number line original parabola parametric equations polar coordinates polar form polynomial function positive Pythagorean quadratic equation quadratic formula quotient radians radical rational expression rational zeros real numbers represents rewrite right triangle rotation shown in Figure simplify sin2 slope solution set Solving standard form subtracted symmetry tangent terminal side theorem trigonometric functions units variable vertex Write x-axis x-coordinate x-intercept x-values x2-term y-axis