### This section contains free e-books and guides on Trigonometry, some of the resources in this section can be viewed online and some of them can be downloaded.

Trigonometry Books
 Trigonometry Notes by Brooke QuinlanBrooke QuinlanPDF | 125 Pages | EnglishThis note covers the following topics: Angles and Their Measure, Right Triangle Trigonometry , Computing the Values of Trigonometric Functions of Acute Angles, Trigonometric Functions of General Angles, Graphs of the Sine and Cosine Functions, Graphs of the Tangent, Cotangent, Secant, and Cosecant Functions, Phase Shifts, The Inverse Trigonometric Functions, Trigonometric Identities, Sum and Difference Formulas, Double-angle and Half-angle Formulas, Trigonometric Equation, Applications Involving Right Triangle, Area of a Triangle. Trigonometry Lecture Notes And Exercises by Daniel RaiesDaniel RaiesPDF | 400 Pages | EnglishThis note provides an introduction to trigonometry, an introduction to vectors, and the operations on functions. Topics covered includes: New functions from old functions, Trigonometry in circles and triangles, trigonometric functions, vectors. Trigonometry Lecture Charles StaatsCharles StaatsPDF | 112 Pages | EnglishThis lecture note covers the following topics: The circular functions, Radians, Sinusoidal functions, Continuity of the trigonometric functions, Minima and Maxima, Concavity, Criteria for local maxima and minima, The Mean Value Theorem, The velocity of a falling object, Theoretical framework, Accumulation Functions, Minor shortcuts in taking definite integrals, Area between two curves, Algebraic properties of the natural logarithm. Trigonometry by Frank GonzalezFrank GonzalezOnline | NA Pages | EnglishThis note provides an introduction to trigonometric functions with emphasis on both the unit circle and the right triangle methodologies. Topics covered includes: Trigonometric Functions, Acute Angles and Right Triangles, Radian Measure and the Unit Circle, Graphs of the Circular Functions, Trigonometric Identities, Inverse Circular Functions and Equations. Trigonometry by Michael CorralMichael CorralPDF | 180 Pages | EnglishThis book basically consists of lecture notes from teaching trigonometry at Schoolcraft College over several years, expanded with some exercises. There are exercises and some more challenging problems are included at the end of each section. Topics covered includes: Right Triangle Trigonometry, General Triangles, Identities, Radian Measure, Graphing and Inverse Functions, Solving Trigonometric Equations and Numerical Methods in Trigonometry. A Semester Course in TrigonometryMarcel B. FinanPDF | 264 Pages | EnglishThis book has been written in a way that can be read by students. The chapters of this book are well suited for a one semester course in College Trigonometry. Topics covered includes: Equations and Inequalities, Geometry in the Cartesian System, Functions and Function Notation, Transformations of Graphs, Combining Functions, Inverse Functions, Angles and Arcs, Trigonometric Functions of Acute Angles, Trigonometric Functions of Any Angle, Trigonometric Functions of Real Numbers, Graphs of the Sine and Cosine Functions, Trigonometric Functions, Simple Harmonic Motion, Verifying Trigonometric Identities, Sum and Difference Identities, The Double-Angle and Half-Angle Identities, Conversion Identities, Inverse Trigonometric Functions and Trigonometric Equations. Elements of Plane TrigonometryHugh BlackburnOnline | 143 Pages | EnglishFirst Chapter explains Newton's Method of Limits to the mensuration of circular arcs and areas. The succeeding Chapters are devoted to an exposition of the nature of the Trigonometrical ratios, and to the demonstration by geometrical constructions of the principal propositions required for the Solution of Triangles. Notes from TrigonometrySteven ButlerPDF | 183 Pages | EnglishThis lecture note talks about topics not usually covered in trigonometry. These include such topics as the Pythagorean theorem, proof by contradiction, limits, and proof by induction. As well as giving a geometric basis for many of the relationships of trigonometry. Plane trigonometry and numerical computationJohn Wesley Young and Frank Millett MorganOnline | 146 Pages | EnglishThe first six chapters of this book give the essentials of a course in numerical trigonometry and logarithmic computation. The remainder of the theory usually given in the longer courses is contained in the last two chapters. Spherical Trigonometry For the Use of Colleges and SchoolsI. TodhunterOnline | 189 Pages | EnglishThis book contains all the propositions usually included under the head of Spherical Trigonometry, together with a large collection of examples for exercise. Elementary trigonometryH. S. Hall and S. R. KnightOnline | 472 Pages | EnglishElementary trigonometry is a book written by mathematicians H. S. Hall and S. R. Knight. This book covers all the parts of Elementary Trigonometry which can conveniently be treated without the use of infinite series and imaginary quantities. The chapters have been subdivided into short sections, and the examples to illustrate each section have been very carefully selected and arranged, the earlier ones being easy enough for any reader to whom the subject is new, while the later ones, and the Miscellaneous Examples scattered throughout the book, will furnish sufficient practice for those who intend to pursue the subject further as part of a mathematical education. Trigonometry TextBook PDF 180PMichael CorralPDF | 180 Pages | English This book covers elementary trigonometry. It is suitable for a one-semester course at the college level, though it could also be used in high schools. The prerequisites are high school algebra and geometry. Lecture Notes Trigonometry (PDF 88P)Andrew KoinesPDF | 88 Pages | EnglishThis note is focused on the following subtopics: Trigonometric Functions, Acute Angles and Right Angles, Radian Measure and Circular Functions, Graphs of the Trigonometric Functions, Trigonometric Identities, Inverse Trig Functions and Trig Equations, Applications of Trigonometry and Vectors. Lecture Notes on Trigonometry Lial, Hornsby, ShcneiderOnline | NA Pages | EnglishThis note contains the following subtopics: Exponential and Logarithmic Functions, Trigonometric Functions, Circular Functions and Their Graphs, Trigometric Identities and Equations. Calculus for the Life Sciences II Lecture Notes Trigonometric Functions (PDF 271P)Joseph M. MahaffyPDF | 271 Pages | EnglishThis note explains the following topics: Annual Temperature Cycles, Trigonometric Functions, Trigonometric Models: Vertical Shift and Amplitude, Frequency and Period, Phase Shift, Examples, Phase Shift of Half a Period, Equivalent Sine and Cosine Models. Dave's Short Trigonometry CourseDavid E. JoyceOnline | NA Pages | EnglishThese notes are more of an introduction and guide than a full course. Topics covered includes: Applications of trigonometry, What is trigonometry?, Background on geometry, Angle measurement, Chords, Sines, Cosines, Tangents and slope, The trigonometry of right triangles, The trigonometric functions and their inverses, Computing trigonometric functions, The trigonometry of oblique triangles, Demonstrations of the laws of sines and cosines, Area of a triangle, Ptolemy’s sum and difference formulas and Summary of trigonometric formulas. Lecture Notes on Algebra and TrigonometryJerry Alan VeehPDF | 86 Pages | EnglishThe objective of a large part of mathematics is to study the relationships that exist between variables. There are essentially two approaches to doing this: visually and through formulas. Both of these methods will be explored in these notes. Throughout these notes are various exercises and problems. These notes also constitute an attempt to identify the essential elements of algebra and trigonometry and to separate these elements from purely computational and formal manipulations which can now be done by computers. 15 Trigonometry Notes TRIGONOMETRY NOTES By STEVEN SY Copyright 2006 PLANE AND SPHERICAL TRIGONOMETRY RIGHT TRIANGLE TRIGONOMETRY by Thomas E. Price Directory Trigonometry sample chapters Trigonometry Unit Mathematics, Trigonometry A short course in Trigonometry Notebook on Trigonometry Introduction to angles Definition of the trigonometric functions Right triangle trigonometry Graphs of the sine and cosine functions Other Graphs Trigonometric identities Trigonometric equations Trigonometry from VCE SOS Trigonometry