1. Dave's Short Course In Trigonometry Table of Contents. Who should take this course? trigonometry for you Your background How to learn trigonometry Applications of 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 Search our site! 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 Three comprehensive modules from Syvum. Each includes theory and explanation, along with practice exercises. 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 trigōnon triangle + metron measure ) is a branch of mathematics that studies triangles and the relationships between their sides and the angles 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. 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.

7. 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

8. Trigonometry Tutorial trigonometry Tutorial, trigonometry Primer, trigonometry for Beginners trigonometry is a word derived from Greek and it means the measurement of triangles. http://www.1728.com/trigtutr.htm

Trigonometry Trigonometry is a word derived from Greek and it means the measurement of triangles . Basically, it is the study of triangles (particularly right triangles ) and the relationships between their sides and angles. If you've just started studying trigonometry (or if you are here for a 'refresher' course), you've probably seen terms such as 'sine' or 'arctangent'. Now you'll see what they mean. Basic Trigonometric Functions The above diagram is a right triangle with sides labeled in terms of Angle A. (Yes, the hypotenuse is also an "adjacent" side of angle A, but it always gets labeled as hypotenuse. Incidentally, the hypotenuse is always the longest side of a right triangle and it is always opposite the right angle.) handy trigonometry calculator sine of an angle is the ratio of the length of the opposite side divided by the length of the hypotenuse . So, we can say: This means that for every always be 0.64279. Let's suppose we have such a triangle and we know that the hypotenuse is 7 feet long. How long is the opposite side? If we wanted to find the length of the third side, (the adjacent side), we

9. 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.

10. 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

11. 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/

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 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

14. 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 "

15. 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.

16. Topics In Trigonometry. Table Of Contents. trigonometry from the very beginning. To view these pages as intended, it is best to view them with Internet Explorer 6 or Firefox 3, and with Garamond as the font. http://www.themathpage.com/atrig/trigonometry.htm

17. 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

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

19. Trigonometry Contents. Introduction; Trigonometric Functions; Solution of Triangles; Circles and Areas; Trigonometric Identities; Spherical Triangles; Applications of trigonometry http://mysite.du.edu/~jcalvert/math/trig.htm

Trigonometry Contents Introduction Trigonometric Functions Solution of Triangles Circles and Areas ... References Introduction In this article I will review what we both know very well, as I recently have done, trying for utility as well as conciseness. For trigonometry to be fun, one should be prepared in geometry and algebra, at least in the properties of triangles, circles and parallels, and in the manipulation of algebraic formulas. This is not really much preparation, but it is essential. The trigonometry text itself introduced the student to logarithms, once the invariable accompaniment to trigonometry, but now much less important that electronic pocket calculators are available. In omitting logarithms in trigonometry, it should be kept in view that logarithms are very important in mathematics, and the proper and efficient use of tables is still a valuable skill. These subjects belong somewhere, even if not in trigonometry. Now, come review with me! Trigonometric Functions Trigonometric functions are also called circular functions because of their simple relation to various lengths defined by a radius of a circle making an angle with a reference direction, as shown in the figure at the right. This is not the only way of defining trigonometric functions; they can be defined as analytic functions of a complex variable z by power series, for example.

20. Rapid Learning Center Trigonometry MF 9am-5pm(PST) Toll-Free (877) RAPID-10 US Direct (714) 692-2900 Int'l 001-714-692-2900 24/7 Technical Support The Rapid Support Center Online Order with Instant Access http://www.rapidlearningcenter.com/mathematics/trigonometry/trigonometry.html

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