1. Dave's Short Course In Trigonometry Covers basic definitions and concepts in beginning trigonometry. http://www.clarku.edu/~djoyce/trig/

Dave's Short Trig Course Table of Contents Who should take this course? Trigonometry for you Your background How to learn trigonometry Applications of trigonometry Astronomy and geography Engineering and physics Mathematics and its applications What is trigonometry? Trigonometry as computational geometry Angle measurement and tables Background on geometry The Pythagorean theorem An explanation of the Pythagorean theorem Similar triangles Angle measurement The concept of angle Radians and arc length Exercises, hints, and answers About digits of accuracy Chords What is a chord? Trigonometry began with chords Sines The relation between sines and chords The word "sine" Sines and right triangles The standard notation for a right triangle Exercises, hints, and answers Cosines Definition of cosine Right triangles and cosines The Pythagorean identity for sines and cosines Sines and cosines for special common angles Exercises, hints, and answers Tangents and slope The definition of the tangent Tangent in terms of sine and cosine Tangents and right triangles Slopes of lines Angles of elevation and depression Common angles again Exercises, hints, and answers

2. S.O.S. Math - Trigonometry Covers measuring degrees, equations, and formulas. Includes illustrations and related links. http://www.sosmath.com/trig/trig.html

S.O.S. Homepage Algebra Calculus Differential Equations ... CyberBoard Search our site! S.O.S. Math on CD Sale! Only $19.95. Works for PCs, Macs and Linux. Tell a Friend about S.O.S. Books We Like Math Sites on the WWW S.O.S. Math Awards ... Privacy Concerns? TRIGONOMETRY Angle Measures Trigonometric Functions The magic identity The Addition Formulas ... SOLVING TRIGONOMETRIC EQUATIONS CALCULUS AND TRIGONOMETRY The Derivatives of Trigonometric Functions HYPERBOLIC TRIGONOMETRY The Hyperbolic Functions The Inverse Hyperbolic Functions Contact us Math Medics, LLC. - P.O. Box 12395 - El Paso TX 79913 - USA users online during the last hour

3. Trigonometry : Trigonometric Functions & Identities In Math FREE online interactive quizzes on Math, trigonometry problems, Trigonometric Functions, Trigonometric Identities trigonometry Word Problems. http://www.syvum.com/math/trigo/

4. Trigonometry Introduction to trigonometry. Includes links to trig-based animations and definitions. http://oolong.co.uk/trig.htm

Trigonometry by Fergus Ray Murray What is Trigonometry? Trigonometry is the branch of mathematics that deals with triangle s, circle s, oscillations and waves ; it is absolutely crucial to much of geometry and physics . You will often hear it described as if it was all about triangles, but it is a lot more interesting than that. For one thing, it works with all angles, not just triangles. For another, it describes the behaviour of waves and resonance , which are at the root of how matter works at the most fundamental level . They are behind how sound and light move, and there are reasons to suspect they are involved in our perception of beauty and other facets of how our minds work - so trigonometry turns out to be fundamental to pretty much everything. Any time you want to figure out anything to do with angle s, or turning, or swinging , there's trigonometry involved. Trickier concepts appear under expandable headings like this. This piece is designed as an easy introduction to trigonometry, relying on as little mathematical knowledge as possible. For topics which will be difficult without any knowledge of algebra and so on, you should see collapsible headers with dashed outlines, which expand when clicked. Feel free to skip these parts, but do delve into them if you are interested. The first thing to understand with trigonometry is why the mathematics of right-angled triangles should also be the mathematics of circles. Picture a line which can turn around one of its ends, like the hand of a clock. Obviously, the moving end of the line traces out a circle - it's like drawing with a compass. Now, consider how far this point is to the right or left of the centre point (we call this distance

5. Trigonometry - Wikipedia, The Free Encyclopedia trigonometry (from Greek trig non triangle + metron measure ) is a branch of mathematics that studies triangles and the relationships between their sides http://en.wikipedia.org/wiki/Trigonometry

Trigonometry From Wikipedia, the free encyclopedia Jump to: navigation search "Trig" redirects here. For other uses, see Trig (disambiguation) Trigonometry History Usage Functions Generalized ... Further reading Reference Identities Exact constants Trigonometric tables Laws and theorems Law of sines Law of cosines Law of tangents Pythagorean theorem ... e The robotic manipulator on the International Space Station is operated by controlling the angles of its joints. Calculating the final position of the astronaut at the end of the arm requires repeated use of trigonometric functions of those angles. All of the trigonometric functions of an angle can be constructed geometrically in terms of a unit circle centered at O Trigonometry (from Greek trigōnon "triangle" + metron "measure") is a branch of mathematics that studies triangles and the relationships between their sides and the angles between the sides. Trigonometry defines the trigonometric functions , which describe those relationships and have applicability to cyclical phenomena, such as waves. The field evolved during the third century B.C. as a branch of geometry used extensively for astronomical studies. Trigonometry is usually taught in middle and secondary schools either as a separate course or as part of a precalculus curriculum. It has applications in both

6. Topics In Trigonometry. Table Of Contents. trigonometry. Home. To view these pages as intended, it is best to view them with Internet The analytic definition of the trigonometric functions. http://www.themathpage.com/atrig/trigonometry.htm

7. Trigonometry trigonometry tutorials, lessons, resources. A handy reference for trigonometric identities. You'll also recommendations for excellent supporting materials to help you learn http://math.about.com/od/trigonometry/Trigonometry_Tutorials_Resources.htm

zWASL=1 zGL='0';zGR='ca-about-radlink'; zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zDO=0 Home Education Mathematics Mathematics Search Mathematics Worksheets Subjects Filed In: Math Help and Tutorials Trigonometry tutorials, lessons, resources. Sin Cosine Tan (4) Identities - 8 Fundamentals A handy reference for trigonometric identities. You'll also recommendations for excellent supporting materials to help you learn trigonometric concepts more readily. zSB(3,3) Excellent Trignometry Tutorials Tutorials on Radians, Equations, Sine and Cosine, Pythagoras, 3 dimensional problems etc. with step by step examples. 7 PDF Trignometry Tutorials - High School Similar to having a Text Resource online! These pdf documents assist with an introduction to Trignometry. A Short Course in Trigonometry Another excellent beginning focusing on applications, angle measurement, chords, sines, cosines, tangents and slope and identities. Introduction to Trignometry Everything you need to learn the basics of Trignometry, complete with graphics, definitions and step by step examples. Radians, Pythagoras and Sine

8. Trigonometry -- From Wolfram MathWorld The study of angles and of the angular relationships of planar and threedimensional figures is known as trigonometry. The trigonometric functions (also called the circular http://mathworld.wolfram.com/Trigonometry.html

Algebra Applied Mathematics Calculus and Analysis Discrete Mathematics ... Interactive Demonstrations Trigonometry The study of angles and of the angular relationships of planar and three-dimensional figures is known as trigonometry. The trigonometric functions (also called the circular functions ) comprising trigonometry are the cosecant cosine cotangent secant ... sine , and tangent . The inverses of these functions are denoted , and . Note that the notation here means inverse function not to the power The trigonometric functions are most simply defined using the unit circle . Let be an angle measured counterclockwise from the x -axis along an arc of the circle . Then is the horizontal coordinate of the arc endpoint, and is the vertical component. The ratio is defined as . As a result of this definition, the trigonometric functions are periodic with period , so where is an integer and func is a trigonometric function. A right triangle has three sides, which can be uniquely identified as the hypotenuse , adjacent to a given angle , or opposite . A helpful mnemonic for remembering the definitions of the trigonometric functions is then given by "oh, ah, o-a," "Soh, Cah, Toa," or "

9. Math.com Homework Help Trigonometry Free math lessons and math homework help from basic math to algebra, geometry and beyond. Students, teachers, parents, and everyone can find solutions to http://www.math.com/homeworkhelp/Trigonometry.html

10. Free Trigonometry Tutorials And Problems Oct 8, 2010 Free Tutorials, problems and self tests on trigonometry. Examples and problems with solutions are included. http://www.analyzemath.com/Trigonometry.html

11. Algebra II: Trigonometry - Math For Morons Like Us Math for Morons Like Us Algebra II trigonometry Solving Eq Ineq Graphs Func. Systems of Eq. http://library.thinkquest.org/20991/alg2/trig.html

Systems of Eq. Polynomials Frac. Express. Complex Numbers ... Trig. Identities On this page we hope to clear up problems you might have with the trigonometric ratios. The trigonometric ratios are very useful when dealing with triangles and unit circles. Click any of the links below or scroll down to better your understanding of the trigonometric ratios. Ratios (sin, cos, tan) Reciprocal ratios (csc, sec, cot) Rotations (unit circle) Radians Cofunctions Graphs involving the trig. ratios Pythagorean and quotient identities Algebraic manipulation Quiz on Trigonometry The trig. ratios, sine cosine , and tangent are based on properties of right triangles. The function values depend on the measure of the angle. The functions are outlined below. sine x = (side opposite x )/hypotenuse cosine x = (side adjacent x )/hypotenuse tangent x = (side opposite x )/(side adjacent x In the figure below, sin A = a/c, cosine A = b/c, and tangent A = a/b. There are two special triangles you need to know, 45-45-90 and 30-60-90 triangles. They are depicted in the figures below. The figures show how to find the side lengths of those types of triangles. Besides knowing how to find the length of any given side of the special triangles, you need to know their trig. ratio values (they are always the same, no matter the size of the triangle because the trig. ratios depend on the measure of the angle). A table of these values is given below.

12. Trigonometry: Definition From Answers.com n. The branch of mathematics that deals with the relationships between the sides and the angles of triangles and the calculations based on them, particularly the trigonometric http://www.answers.com/topic/trigonometry

13. Trigonometry -- Britannica Online Encyclopedia trigonometry, the branch of mathematics concerned with specific functions of angles and their application to calculations. There are six functions of an angle commonly used in http://www.britannica.com/EBchecked/topic/605281/trigonometry

document.write(''); Search Site: Advanced Search With all of these words With the exact phrase With any of these words Without these words Home SHOP BROWSE BLOG ... HELP Username: Password: Remember me Forgot your password? Help Email " is the e-mail address you used when you registered. Password " is case sensitive. If you need additional assistance, please contact customer support Enter the e-mail address you used when enrolling for Britannica Premium Service and we will e-mail your password to you. trigonometry My Britannica CREATE MY trigonometry NEW ARTICLE ... SAVE trigonometry Table of Contents: trigonometry Article Article History of trigonometry History of trigonometry - Classical trigonometry Classical trigonometry - - Ancient Egypt and the Mediterranean... Ancient Egypt and the Mediterranean world - - India and the Islamic world India and the Islamic world - - Passage to Europe Passage to Europe - Modern trigonometry Modern trigonometry - - From geometric to analytic trigonom... From geometric to analytic trigonometry - - Application to science Application to science Principles of trigonometry Principles of trigonometry - Trigonometric functions Trigonometric functions - - Trigonometric functions of an angle Trigonometric functions of an angle - - Tables of natural functions Tables of natural functions - Plane trigonometry Plane trigonometry - Spherical trigonometry Spherical trigonometry - Analytic trigonometry Analytic trigonometry - Coordinates and transformation of coo...

14. Trigonometry Calculator - Triangle Math Calculator Visually calculate angles, lengths and circle dimensions. http://www.visualtrig.com/

15. TRIGONOMETRY PURPOSE This is a look at trigonometry for practical use in flash actionscript. I am one of those people who could have cared less about trigonometry when it was taught to me http://www.codylindley.com/Tutorials/trigonometry/

People have ask so here it is: download it! (this file includes fla's and all, just drop index.htm in a browser) PURPOSE: This is a look at trigonometry for practical use in flash actionscript. I am one of those people who could have cared less about trigonometry when it was taught to me in high school. Today I am kicking myself for not paying more attention in math class. WHY: The reason for this refresher is for the purpose of writing/programming actionscript in flash that will fake 3D in a 2D space. This was written for my own notes, but I decided someone else out there might get some use out of it. WARNING: The trigonometry is a review for any one with some common sense and the desire to learn. I do however expect the readers of this material to be knowledgeable about actionscript programming techniques when it comes to writing code for flash. With that said. Expect very little explanation about flash and the code itself. However anyone who considers themselves a flash actionscript guru should be fine. Time for a reality check yet? (You need math to understand trigonometry! You need Colin Moock's book on actionscript to understand scripting techniques in flash.) Last word, reader be ware I am not a writer and this was not written for the the purpose of regenerating these ideas in flash. Think of this material as just a tutorial on the concept of trigonometry and flash, an overview really. Ya, I know. This stuff is not new and for the most part I am just rehashing what I've read in books, examples and all. So don't go thinking I am some super smart guy. The reality is I just read a lot of books. And the people who wrote those books are just people who read a lot of books. And the people who wrote those books are, well, you get the idea. Credit will be giveing to those books at the bottom of this page.

16. Math Help - Trigonometry Index - Technical Tutoring Provides detailed discussion of trigonometry concepts. Includes examples of varying difficulty. http://www.hyper-ad.com/tutoring/math/trig/

Technical Tutoring Home Site Index Advanced Books Speed Arithmetic ... STAR WARS DVDs and VHS Videos Technical Tutoring Trigonometry Help Pages Index Review of Trigonometry Trigonometric Functions of Common Angles The Sine Function The Cosine Function ... Hyper-Ad Online Gift Shop New topics added regularly - Please come back! Last Modified: 11/15/02

17. Trigonometry - LoveToKnow 1911 trigonometry (from Gr. rpiywvov, a triangle, /2 /2 Tpov, measure), the branch of mathematics which is concerned with the measurement of plane and spherical triangles, that is, with the http://www.1911encyclopedia.org/Trigonometry

Trigonometry From LoveToKnow 1911 TRIGONOMETRY (from Gr. rpiywvov, a triangle /2 Tpov, measure), the branch of mathematics analogy frequently called spheroidal trigonometry. Every new class of surfaces which may be considered would have in this extended sense a trigonometry of its own, which would consist in an investigation of the nature and properties of the functions necessary for the measurement of the sides and angles of triangles bounded by geodesics drawn on such surfaces. History Trigonometry, in its essential form of showing how to deduce the values of the angles and sides of a triangle when other angles and sides are given, is an invention of the Greeks. It found its origin in the computations demanded for the reduction of astronomical observations and in other problems connected with astronomical science; and since spherical triangles specially occur, it happened that spherical trigonometry was developed before the simpler plane trigonometry. Certain theorems were invented and utilized by Hipparchus , but material progress was not recorded until Ptolemy collated, amended and developed the work of his predecessors. In book xi. of the

18. An Introduction To TRIGONOMETRY Definitions, basics, functions, and other concepts necessary to understand basic trigonometry. http://www.ping.be/~ping1339/gonio.htm

An introduction to TRIGONOMETRY Definitions and basics Trigonometric circle and angles Trigonometric numbers of a real number t Basic formulas ... Calculations with inverse trigonometric functions Definitions and basics Trigonometric circle and angles Take an x-axis and an y-axis (orthonormal) and let O be the origin. A circle centered in O and with radius = 1, is called a trigonometric circle or unit circle. Turning counterclockwise is the positive orientation in trigonometry. Angles are measured starting from the x-axis. Two units to measure an angle are degrees and radians An orthogonal angle = 90 degrees = pi/2 radians In this theory we use mainly radians. With each real number t corresponds just one angle, and just one point P on the unit circle, when we start measuring on the x-axis. We call that point the image point of t. Examples: with pi/6 corresponds the angle t and point P on the circle. with -pi/2 corresponds the angle u and point Q on the circle. Trigonometric numbers of a real number t With t radians corresponds exactly one point p on the unit circle.

19. Marlene's Trigonometry Calculator -Home Page Learn the basics, the solutions, and how to convert from degrees to radians. http://www.marlenesite.com/math/trigonometry/

20. Trigonometry Help, Trigonometry Tutoring By Expert Trigonometry Tutor | Tutorvis trigonometry is a fascinating tool, initially conceived from chords in a UnitCircle it has wide applications and whenever space is involved trigonometry is used irrespective http://www.tutorvista.com/trigonometry-help

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