An ode to triangles, the shape that makes our lives possible   Trigonometry is perhaps the most essential concept humans have ever devised. The simple yet versatile triangle allows us to record music, map the world, launch rockets into space, and be slightly less bad at pool. Triangles underpin our day-to-day lives and civilization as we know it.   In Love Triangle, Matt Parker argues we should all show a lot more love for triangles, along with all the useful trigonometry and geometry they enable. To prove his point, he uses triangles to create his own digital avatar, survive a harrowing motorcycle ride, cut a sandwich, fall in love, measure tall buildings in a few awkward bounds, and make some unusual art. Along the way, he tells extraordinary and entertaining stories of the mathematicians, engineers, and philosophers—starting with Pythagoras—who dared to take triangles seriously.   This is the guide you should have had in high school—a lively and definitive answer to “Why do I need to learn about trigonometry?” Parker reveals triangles as the hidden pattern beneath the surface of the contemporary world. Like love, triangles actually are all around. And in the air. And they’re all you need. Read more

Make trigonometry as easy as 1-2-3Believe it or not, trigonometry is easier than it looks! With the right help, you can breeze through your next trig class, test, or exam and be ready for your next math challenge. In Trigonometry For Dummies, you’ll learn to understand the basics of sines, cosines, and tangents, graph functions, solve tough formulas, and even discover how to use trig outside the classroom in some cool and interesting ways. Ditch the confusing jargon and take a plain-English tour of one of the most useful disciplines in math. In this lifesaving guide, you’ll learn how to: Graph trig functions, including sine, cosine, tangent, and cotangent functionsUnderstand inverse trig functions and solve trig equationsRelate triangles to circular functions and get a handle on basic identitiesSo, whether you’re looking for an easy-to-use study guide, to boost your math grade, or get a refresher on some basic trig concepts after a long absence from studying, Trigonometry For Dummies is your ticket to understanding the mathematical mysteries of the triangle. Read more

This trigonometry workbook focuses on trig identities. The majority of the exercises let you derive a variety of trig identities by following similar examples. If you get stuck, helpful hints in the back of the book help walk you through the solution. Other exercises include applications, such as how to find the tangent of 15 degrees without a calculator or how to apply trig identities to solve equations. This book also serves as a handy list of numerous trig identities organized by topic. The answer to every problem can be found at the back of the book. The author, Chris McMullen, Ph.D., has over twenty years of experience teaching math skills to physics students. He prepared this workbook of the Improve Your Math Fluency series to share his knowledge of trig identities. Read more

EDITIONS: Originally published as a paperback workbook, this print replica digital format is designed for value pricing (compared to the print edition) and the convenience of electronic storage. Pinch-and-zoom allow for close-up reading. Problems can be worked out on scratch paper. Also available in paperback.WHAT TO EXPECT: This is a workbook designed to offer plenty of practice with essential skills. It is not a textbook designed to teach trigonometry, but a workbook designed to supplement a student’s instruction in trigonometry. Examples and a brief description of the concepts are included to serve as a quick refresher and a guide. If you need more instruction, you should use this workbook in combination with a textbook. The last chapter involves applications of trig identities, which is a challenging topic that will mostly interest more advanced students. A few chapters are intended to help students memorize the trig functions of common angles like 30, 150, or 315 degrees, which will be especially useful for students who may take exams without a calculator (that’s the case with the MCAT and many math and science courses). There may be more practice than many students need, which is much better than having too little practice. Any extra pages may be helpful for teachers or parents with multiple children.DESCRIPTION: This Trigonometry Essentials Practice Workbook with Answers provides ample practice for developing fluency in very fundamental trigonometry skills. Every problem can be answered without a calculator, which is very helpful for students who aren’t allowed to use a calculator. This is the case in some trig and physics courses, as well as some standardized exams (like the MCAT).CONTENTS: This workbook is conveniently divided up into 11 chapters so that students can focus on one trigonometry skill at a time. Skills include the following:converting between degrees and radians;expressing sine, cosine, tangent, secant, cosecant, and cotangent as fractions by looking at right triangles;solving for unknown sides and angles in 45°-45°-90° and 30°-60°-90° right triangles;determining the sine, cosine, tangent, secant, cosecant, and cotangent of multiples of 30° and 45° up to 360° (working with both degrees and radians);practice finding the reference angle for angles in Quadrants II, III, and IV;finding the inverse trig functions;applying the law of sines and the law of cosines to solve for unknown sides and angles in acute and obtuse triangles;solving problems with trig identities (like the angle sum and difference formulas);and solving algebraic equations that feature basic trig functions.EXAMPLES: Each section begins with a few pages of instructions for how to solve the problems followed by some examples. These examples should serve as a useful guide until students are able to solve the problems independently.ANSWERS: Answers to exercises are tabulated at the back of the book. This helps students develop confidence and ensures that students practice correct techniques, rather than practice making mistakes.PHOTOCOPIES: The copyright notice permits parents/teachers who purchase one copy or borrow one copy from a library to make photocopies for their own children/students only. This is very convenient if you have multiple children/students or if a child/student needs additional practice.INTRODUCTION: An introduction describes how parents and teachers can help students make the most of this workbook. Students are encouraged to time and score each page. In this way, they can try to have fun improving on their records, which can help lend them confidence in their math skills. Read more

Trigonometry: A Complete Introduction is the most comprehensive yet easy-to-use introduction to Trigonometry. Written by a leading expert, this book will help you if you are studying for an important exam or essay, or if you simply want to improve your knowledge. The book covers all areas of trigonometry including the theory and equations of tangent, sine and cosine, using trigonometry in three dimensions and for angles of any magnitude, and applications of trigonometry including radians, ratio, compound angles and circles related to triangles. Everything you will need is here in this one book. Each chapter includes not only an explanation of the knowledge and skills you need, but also worked examples and test questions. Read more

Each topic is summarized and followed by detailed, easy-to-understand examples. This book is one of four “Help” books. The four books and the topics they include are:Algebra 1 Help: A0, A1, T1Algebra 2 Help: A1, A2, T1, T2, T3Pre-Calc and Trig Help: A1, A2, T1, T2, T3College Algebra Help: A0, A1, A2, T1, T2A0 = Algebra Topics – Part 0Number SystemExponentsMath OperationsFractionsFactoringCartesian Coordinate SystemExpressions, Equations, InequalitiesFunctionsLinear and Quadratic FunctionsParent FunctionsPiecewise FunctionsSet NotationDomain and RangeMore Linear EquationsAbsolute Value ProblemsScientific NotationMaking Choices – Bike RentalA1 = Algebra Topics – Part 1Polynomial Division (Long and Synthetic)Factoring PolynomialsCompleting the SquareQuadratic FormulaFunction CompositionInverse FunctionsTransformationsGraphing Quadratic FunctionsGraphing Polynomial FunctionsGraphing Rational FunctionsWorking With RadicalsLogsExponential Growth and DecayRegressionSystems of Linear EquationsSystems of Linear InequalitiesSolving InequalitiesA2 = Algebra Topics – Part 2RootsBinomial ExpansionPartial FractionsConicsVectorsParametric EquationsSeriesMatricesStatisticsProbabilityLimitsDifference Quotient (Derivative)T1 = Trig. Topics – Part 1Right TrianglesThe Unit CircleTrig FunctionsLaw of CosinesLaw of SinesGeneral TrianglesBearingsT2 = Trig. Topics – Part 2Graphs of Trig FunctionsGraphs of Inverse Trig FunctionsTranslations of Trig FunctionsUsing Trig Identities and FormulasSolving Trig EquationsT3 = Trig. Topics – Part 3Complex Numbers in Rectangular FormComplex Numbers in Polar FormComplex Numbers – Conjugate PairsComplex Numbers – OperationsComplex Numbers – RootsPolar CurvesPolar Curves – Patterns Read more

This no-nonsense guide provides students and self-learners with a clear and readable study of trigonometry's most important ideas. Tim Hill's distraction-free approach combines decades of tutoring experience with the proven methods of his Russian math teachers. The result: learn in a few days what conventional schools stretch into months.Teaches general principles that can be applied to a wide variety of problems.Avoids the mindless and excessive routine computations that characterize conventional textbooks.Treats trigonometry as a logically coherent discipline, not as a disjointed collection of techniques.Restores proofs to their proper place to remove doubt, convey insight, and encourage precise logical thinking.Omits digressions, excessive formalities, and repetitive exercises.Covers all the trigonometry needed to take a calculus course.Includes problems (with all solutions) that extend your knowledge rather than merely reinforce it.Contents1. A Few Basics2. Radian Measure3. The Trig Functions4. Trig Values for Special Angles5. Graphs of Trig Functions6. The Major Formulas7. Inverse Trig Functions8. The Law of Cosines (and Sines)9. Solutions10. Trig Cheat SheetAbout the AuthorTim Hill is a statistician living in Boulder, Colorado. He holds degrees in mathematics and statistics from Stanford University and the University of Colorado. Tim has written self-teaching guides for Algebra, Trigonometry, Geometry, Precalculus, Advanced Precalculus, Permutations & Combinations, Mathematics of Money, and Excel Pivot Tables. When he's not crunching numbers, Tim climbs rocks, hikes canyons, and avoids malls. Read more

For courses in Plane Trigonometry.Show students that our world is profoundly mathematicalBob Blitzer continues to inspire students with his engaging approach to mathematics, making this beloved series the #1 in the market year after year. Blitzer draws on his unique background in mathematics and behavioral science to present a wide range of vivid applications in real-life situations. Students of all majors stay engaged because Blitzer uses pop-culture and up-to-date references to connect math to students’ lives, showing that our world is profoundly mathematical. With the new edition, Blitzer takes student engagement with the mathematical world to a whole new level drawing from applications across all fields as well as topics that are of interest to any college student (e.g., student loan debt, grade inflation, sleep hours of college students). Applications are also brought to life online in a new, assignable video series that explore the entertaining and mathematical Blitzer Bonus boxes. The new edition also aims to help more students to succeed in the course with just-in-time support in the text--such as Brief Review of prerequisite topics, Achieving Success boxes, and Retain the Concepts exercises--as well as support within MyLab™ Math such as new concept-level videos, assignable tools to enhance visualization, and more. Also available with MyLab MathMyLab™ Math is an online homework, tutorial, and assessment program designed to work with this text to engage students and improve results. Within its structured environment, students practice what they learn, test their understanding, and pursue a personalized study plan that helps them absorb course material and understand difficult concepts. The new edition continues to expand the comprehensive auto-graded exercise options. In addition, MyLab Math includes new options designed to help students of all levels and majors to stay engaged and succeed in the course.  Note: You are purchasing a standalone product; MyLab does not come packaged with this content. Students, if interested in purchasing this title with MyLab, ask your instructor for the correct package ISBN and Course ID. Instructors, contact your Pearson representative for more information.  If you would like to purchase both the physical text and MyLab, search for: 0134765435 / 9780134765433 Trigonometry Plus MyLab Math with eText -- Title-Specific Access Card Package, 2/ePackage consists of:0134469968 / 9780134469966 Trigonometry0134759567 / 9780134759562 MyLab Math with Pearson eText - Standalone Acccess Card - for Trigonometry Read more

Spherical Geometry and Its Applications introduces spherical geometry and its practical applications in a mathematically rigorous form. The text can serve as a course in spherical geometry for mathematics majors. Readers from various academic backgrounds can comprehend various approaches to the subject. The book introduces an axiomatic system for spherical geometry and uses it to prove the main theorems of the subject. It also provides an alternate approach using quaternions. The author illustrates how a traditional axiomatic system for plane geometry can be modified to produce a different geometric world – but a geometric world that is no less real than the geometric world of the plane. Features:A well-rounded introduction to spherical geometry Provides several proofs of some theorems to appeal to larger audiencesPresents principal applications: the study of the surface of the earth, the study of stars and planets in the sky, the study of three- and four-dimensional polyhedra, mappings of the sphere, and crystallographyMany problems are based on propositions from the ancient text Sphaerica of Menelaus Read more

HOW TO MEMORIZE FORMULAS IN MATHEMATICSHave you ever stayed up all the night trying to memorize formulas for your Mathematics examination but yet no changes? orDo you memorize a list of formulas today and forget almost everything about them the following day? orDoes this seem to be the hardest aspect concerning learning Mathematics which is pulling you back instead of moving on?If the answer to any of the above questions is in affirmative, this book “How to Memorize Formulas in Mathematics" is for you.This book is a part of two book series. Book-1: CalculusBook-2: TrigonometryYou may be someone who hasn't practices the core math fundamentals taught in grade school due to lack of knowing the right formula to apply to a particular question, making it a bit complicated. Or maybe you’re a college student who wants to memorize the basic and core formulas of Mathematics, or you’re just a parent who wants to make sure that your kid becomes excellent at Mathematics and doesn't fall victim to the "Mathematics is a difficult syndrome."How do you figure out how to memorize your Mathematics formulas? Which formulas are hardest to understand? This book is a must for you because you will learn the Proven Strategies and Techniques needed to memorize the complete formula and its conditions that is vital to understand Mathematics (Trigonometry in particular).In reality, Math isn't hard at all, all that's required is learning a few necessary steps to solve any given problem with the required formula, and that’s what you'll learn in this book.This book will not only reveal you the entire secret to success in memorizing some of the essential formulas that you need to excel at Trigonometry but will also make you aware about some of the general methods and techniques to learn formulas in any branch of Mathematics or Physics. One of the most terrible things about learning math is keeping all the formulas you need straight in your head. Don't worry! The tricks in this book will teach you:• Using memorizing techniques that will help you recall formulas of Trigonometry.• Understand the derivation of some of the formulas, which will help you to be able to rebuild the formula.• How to maintain a balance memorizing-mental state so that all of your studying stays in your head!You'll be amazed at how much better you'll be at Trigonometry (Math in general) after reading this book with the tricks shown in the book.Stop letting math frustrate you, get your copy today and let this book show you the key to learning and memorizing Trigonometry formula to eliminate the frustration in learning Trigonometry.Good luck with understanding math formulas!ABOUT THE AUTHORRajesh Sarswat is a Post Graduate in Computer Science. He has availed voluntary retirement from a senior capacity under the Government of India to pursue his passion for writing and teaching. Despite the pressing bureaucratic compulsions he had to negotiate with on a daily basis, he pursued his keen interest in the field of Mathematics and had done a lot of research on various techniques and concepts on quick Mathematics. This book is the result of his extensive research in this field for the last 20 years. He qualified in 13 All India Level Competitive Examinations, some of which have been reckoned as the toughest and the most gruesome, alongside his research and writing work. Apart from writing on mathematical subjects, Rajesh has a penchant for teaching mathematics and is a favorite teacher for his creative and entertaining ways of presenting the topic. His books&nb Read more

This engaging review guide and workbook is the ideal tool for sharpening your Trigonometry skills!This review guide and workbook will help you strengthen your Trigonometry knowledge, and it will enable you to develop new math skills to excel in your high school classwork and on standardized tests. Clear and concise explanations will walk you step by step through each essential math concept. 500 practical review questions, in turn, provide extensive opportunities for you to practice your new skills. If you are looking for material based on national or state standards, this book is your ideal study tool!Features:•Aligned to national standards, including the Common Core State Standards, as well as the standards of non-Common Core states and Canada•Designed to help you excel in the classroom and on standardized tests•Concise, clear explanations offer step-by-step instruction so you can easily grasp key concepts•You will learn how to apply Trigonometry to practical situations•500 review questions provide extensive opportunities for you to practice what you’ve learned Read more

FORMATS: 6" x 9" paperback (ISBN: 978-1941691038). 8.5" x 11" paperback with large print (ISBN: 978-1941691021). Kindle e-book (ASIN: B0106X7NL4).WHAT TO EXPECT: This book reviews essential trigonometry concepts, ideas, and skills. Topics include the basic trig functions, special angles, the reference angle, the unit circle, going beyond Quadrant I, inverse trig functions, and radians. A few chapters are intended to help students memorize the trig functions of common angles like 30, 150, or 315 degrees, which will be especially useful for students who may take exams without a calculator (that's the case with the MCAT and many math and science courses). Each chapter works out examples with step-by-step solutions and explanations. Problems at the end of each chapter offer practice carrying out the techniques. The answer to every exercise can be found on the following page.CONTENTS: This book is conveniently divided up into 9 chapters so that students can focus on one trigonometry skill at a time. Skills include the following:review of the Pythagorean theorem and relevant properties of triangles;understanding sine, cosine, and tangent;special angles and special triangles;working with the reference angle;using the unit circle;working in Quadrants II-IV;finding secant, cosecant, and cotangent;finding inverse trig functions;and converting between degrees and radians.AUTHOR: Chris McMullen earned his Ph.D. in physics from Oklahoma State University and currently teaches physics at Northwestern State University of Louisiana. He developed the Step-by-Step and Improve Your Math Fluency series of workbooks to help students become more fluent in basic math skills.ANSWERS: Answers to exercises can be found on the page following the practice problems. This helps students develop confidence and ensures that students practice correct techniques, rather than practice making mistakes. Read more

An unparalleled illustrated history of spherical trigonometry from antiquity to todayHeavenly Mathematics traces the rich history of spherical trigonometry, revealing how the cultures of classical Greece, medieval Islam, and the modern West used this forgotten art to chart the heavens and the Earth. Once at the heart of astronomy and ocean-going navigation for two millennia, the discipline was also a mainstay of mathematics education for centuries and taught widely until the 1950s. Glen Van Brummelen explores this exquisite branch of mathematics and its role in ancient astronomy, geography, and cartography; Islamic religious rituals; celestial navigation; polyhedra; stereographic projection; and more. He conveys the sheer beauty of spherical trigonometry, providing readers with a new appreciation of its elegant proofs and often surprising conclusions. Heavenly Mathematics is illustrated throughout with stunning historical images and informative drawings and diagrams. This unique compendium also features easy-to-use appendixes as well as exercises that originally appeared in textbooks from the eighteenth to the early twentieth centuries. Read more

This book deals with trigonometry from its birth in ancient Greece through to its use in modern day. It deals with the Trigonometry rules and processes that are commonly used in GCSE and A'level and dissects the rules to explain how and why they work. This book is part of a series so please look out for new books to follow. Read more

This book is intended to be as much a part of the fabricator's toolbox as a hammer or a piece of chalk. During the apprenticeship stage it acts as an easy to follow instruction manual and later as a handy reference to assist with calculation and development. The many notes made up over the years whilst instructing apprentices and recently qualified boilermakers form the basis for this book. It is designed to guide the apprentice from day one in the workshop, through the many mathematical applications he will need to master on his journey to becoming a competent craftsman. The information contained in this book will not become faded with age, or outdated, because the formulae contained herein are just as relevant today as they were when they were written down eons ago. The purpose of this book is to bring them all together in an easy to understand manner with working examples and explanatory diagrams. Read more

Formatted especially for reading on tablet devices, this book explains the basic ideas behind trigonometry using no-nonsense plain English. Simple and clear diagrams make it easy to see what is being explained. As you go through the book, practice questions with worked solutions will help you fully grasp the ideas and concepts. Don't worry if you have no previous knowledge of trigonometry, or even of what an 'angle' is. This book starts right at the very beginning and builds up slowly. By the end of the book you will fully understand things like Pythagoras' theorem, sines, arcsines, cosines, arccosines, tangents and arctangents. Read more

Are you preparing for Florida’s PERT exam and want to walk into the testing center with confidence?well PERT study guide 2025–2026 Study Guide is the only book you’ll need to succeed. Whether you’re aiming to place into college-level courses, avoid remedial classes, or simply pass on the first try, this all-in-one, easy-to-follow manual was written with care to support you, guide you, and help you reach your goals with less stress and more certainty.Inside this guide, you’ll find everything you need to know about the Postsecondary Education Readiness Test clearly explained, carefully organized, and built with your success in mind. This is more than just a study guide. It’s your personal coach, your step-by-step answer key, and your confidence builder in one.✅ what’s Inside:◆ 300+ High-Quality Practice Questions across Math, Reading, and Writing each with step-by-step explanations so you know why the answer is correct◆ Full Breakdown of All Test Sections including Arithmetic, Algebra, Geometry, Reading Comprehension, Sentence Structure, and Grammar◆ Test-Taking Strategies built for computer-adaptive testing, even though the PERT is untimed◆ Real Study Plans for 2-week, 4-week, and 6-week timelines so you can prep efficiently, no matter your schedule◆ Common Pitfalls & How to Avoid Them written by experts who’ve helped thousands succeed◆ Motivational Guidance and Final-Day Checklists to reduce stress and boost confidence◆ Florida-Specific Resources & Registration Info to guide you every step of the wayWhether you’re a high school student, a returning adult learner, or a college placement candidate, this guide meets you where you are — and gets you where you need to be.🎓 Who This Book Is For:✓ Florida students preparing to meet college placement requirements✓ Adult learners returning to school and needing to refresh their skills✓ Anyone looking for a clear, simple, and effective path to PERT successWith a clear structure, powerful review tools, and realistic practice that mirrors the actual test, Master the PERT is your ultimate step toward college readiness. No fluff. No confusion. Just real prep for real results.Kindly click on the buy now button to get your copy Read more

BOOK HAS BEEN UPDATED BY AUTHOR ON SEPTEMBER 3, 2023Algebra II Essential Practice Workbook for the High School is created by American Math Academy to complete Algebra II Essential Practice Workbook, which includes:31 Topics with Detailed Summaries31 Exercises Test with solutions1 Sample Test1 Final TestOver 450+ Practice Questions with SolutionsThis book brings together everything you need to know for the Algebra II. It will help you to cover all the Algebra II topics.SAMPLE TESTCHAPTER 1: LINEAR SENTENCESSolving Linear EquationsSolving Linear InequalitiesSolving Literal EquationsAbsolute Value Equations and Absolute Value InequalitiesProportion, Direct Variation and Inverse VariationSolving Systems of Equations by Substitution & EliminationSolving Equations Involving Parallel and Perpendicular LinesCHAPTER 2: POLYNOMIALSAdding and Subtracting PolynomialsMultiplying and Dividing PolynomialsSpecial Product Polynomials and Factoring PolynomialsCHAPTER 3: RATIONAL EXPRESSIONS Simplifying Rational ExpressionsAdding and Subtracting Rational ExpressionsMultiplying and Dividing Rational ExpressionsComplex FractionsCHAPTER 4: FUNCTIONSFunction Notation, Domain, Range and Inverse FunctionsOperations with Functions and Composition of FunctionsExponential FunctionsTrigonometric FunctionsCHAPTER 5: RADICALS AND COMPLEX NUMBERSSimplifying Radical ExpressionsAdding and Subtracting Radical ExpressionsMultiplying and Dividing Radical ExpressionsRational ExponentsImaginary Numbers and Complex NumbersCHAPTER 6: QUADRATIC EQUATIONSSolving Quadratic Equations by FactoringSolving Quadratic Equations by Quadratic Formula and Complete SquareCHAPTER 7: WORD PROBLEMSSimple Interest, Compound Interest, Mixture, and Work Problem SolvingCHAPTER 8: SEQUENCES AND SERIESArithmetic Sequence and Geometric SequenceArithmetic Series and Geometric SeriesCHAPTER 9: CONIC SECTIONSCircle, Ellipse, and ParabolaCHAPTER 10: LOGARITHMSLogarithms and Operations with LogarithmsCHAPTER 11: MATHRICESMatrices and Operations with MatricesFinal TestFinal Test SolutionDisclaimer: All rights reserved. No part of this publication may be reproduced in whole or in part, stored in a retrieval system, or transmitted in any form or by any means electronic, mechanical, photocopying, recording or otherwise, without written permission of the copyright owner. Read more

Practice your way to a better grade in pre-calcPre-Calculus: 1001 Practice Problems For Dummies gives you 1,001 opportunities to practice solving problems from all the major topics in Pre-Calculus—in the book and online! Get extra help with tricky subjects, solidify what you’ve already learned, and get in-depth walk-throughs for every problem with this useful book. These practice problems and detailed answer explanations will turn you into a pre-calc problem-solving machine, no matter what your skill level. Thanks to Dummies, you have a resource to help you put key concepts into practice. Work through practice problems on all Pre-Calculus topics covered in school classesRead through detailed explanations of the answers to build your understandingAccess practice questions online to study anywhere, any timeImprove your grade and up your study game with practice, practice, practiceThe material presented in Pre-Calculus: 1001 Practice Problems For Dummies is an excellent resource for students, as well as for parents and tutors looking to help supplement Pre-Calculus instruction. Pre-Calculus: 1001 Practice Problems For Dummies (9781119883623) was previously published as 1,001 Pre-Calculus Practice Problems For Dummies (9781118853320). While this version features a new Dummies cover and design, the content is the same as the prior release and should not be considered a new or updated product. Read more

Become a trig master in no time!Most math and science study guides are a reflection of the college professors who write them: dry, difficult, and pretentious. The Humongous Book of Trigonometry Problems is the exception. Author Mike Kelley has taken what appears to be a typical trigonometry workbook, chock full of solved problems—more than 750!—and made notes in the margins adding missing steps and simplifying concepts and solutions, so what would be baffling to students is made perfectly clear. No longer will befuddled students wonder where a particular answer came from or have to rely on trial and error to solve problems. And by learning how to interpret and solve problems as they are presented in a standard trigonometry course, students become fully prepared to solve those difficult, obscure problems that were never discussed in class but always seem to find their way onto exams. Read more