101. BUBL LINK / 5:15 Internet Resources: Trigonometry Introduction to trigonometry An introductory guide to trigonometry. Includes functions, inverse functions and equations. Author Johan http://bubl.ac.uk/link/t/trigonometry.htm

BUBL LINK / 5:15 Catalogue of Internet Resources Home Search Subject Menus A-Z ... About Trigonometry A-Z Index Titles Descriptions Introduction to Trigonometry Mathematics Archives Name Project Trigonometry PUMAS Subject Keywords: Practical Uses of Math and Science ... WebMath Page last updated: 17 March 2003 Comments: bubl@bubl.ac.uk Introduction to Trigonometry An introductory guide to trigonometry. Includes functions, inverse functions and equations. Author: Johan.Claeys Subjects: trigonometry DeweyClass: ResourceType: guide Location: belgium, europe Last checked: Mathematics Archives Mathematics resources covering a range of topics including algebra, geometry, fractals, numerical analysis, statistics and trigonometry. Materials include bibliographies, images, photographs, problems, proofs, theories, conference proceedings and teaching materials. In addition to traditional subjects, the application of maths in art and music is considered and mathematics software is reviewed. Author: Mathematics Archives Subjects: algebra, fractals, geometry, mathematics education, mathematics software, numerical analysis, trigonometry DeweyClass: ResourceType: document collection, proceedings

102. Trigonometry trigonometry. Contents. Applications of trigonometry. Vector calculations can be made graphically, but trigonometry is required for numerical solutions. http://www.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.

103. MATH-abundance Tutorial covers trigonometry, vectors, lines,complex numbers, cubic equations sequences and limits, continuity derivatives, minimum and maximum values, exponential and logarithmic functions, hyperbolic functions, finding roots of equations, integration, polar coordinates and integration. http://www.ping.be/~ping1339/

MATH-abundance Main Purpose = MATH TUTORIAL TUTORIAL : Topics; Solved and unsolved problems Math links to links to math links ... Home Page = http://home.scarlet.be/~ping1339/ Last update: 18 apr 2004 Main Purpose = MATH TUTORIAL The main purpose of this site is to provide the net with a 'upper secondary' MATH TUTORIAL The order of the topics is not random. Most of them appeal on the properties and formulas stated in a preceding topic. You can find headword-links of the tutorial in the MATH-TUTORIAL INDEX Download Since each topic is in 1 file, it is easy to download the file and to study the subject off line. See Copying Conditions TUTORIAL : Topics; Solved and unsolved problems Trigonometry Vectors Lines - orthogonality ; distance (in a plane) Complex numbers ... Miscellaneous Problems about all topics Additionally, I can give a number of math links to math related links to math links... Math links to links to math links ... Lessons, Tutorials and Lecture Notes Tutorial about trigonometry Tutorial about algebra, calculus, geometry, statistics, trigonometry Linear Algebra ... Mathematics Archives Topics Searchable database. Mathematics Archives A very powerful search engine for math stuff S.O.S. MATHematics

104. James Newton's Demos Director behavior demonstrations including 3D, imaging Lingo, geometry and trigonometry, objectoriented programming. http://perso.planetb.fr/newton/

105. Trigonometry trigonometry in right triangles is really just a way of labelling the sides of the triangle and the fractions you can make out of them. trigonometry page 1 http://www.geocities.com/thesciencefiles/trig/trigonometry.html

Or, ... "What's all that sin, cos, and tan stuff on my calculator" T rigonometry in right triangles is really just a way of labelling the sides of the triangle and the fractions you can make out of them. For example, consider this right triangle: Here are three fractions you can make from the sides of this triangle: Each of the sides of a right triangle has a name, and each of these fractions you can make from the sides has a name! Let's look at a simple right triangle, with one of the angles marked The sides are named according to where the marked angle is. The side called 'Hypotenuse' is always the long side across from the right angle. The side called 'Opposite' is always across from, or 'opposite' to, the marked angle The side called 'Adjacent' is the one next to, or 'adjacent' to, Now let's make the fractions from the named sides: Here is the interesting part: each one of these fractions has its own name! Here are the names of the fractions you can make from the sides of a right triangle: Mathematicians being generally lazy sorts of people wanted an easy way to remember these fraction names, and a quicker way to write them:

106. Trigonometry--what It Is Good For? Qualitative explanation of uses of trigonometry, illustrated by survey of India and discovery of fact that Mt. (M7) trigonometryWhat it is good for? http://www-istp.gsfc.nasa.gov/stargaze/Strig1.htm

Site Map (M-7) TrigonometryWhat it is good for? The basic problem of trigonometry runs somewhat like this: You stand next to a wide river and need to know the distance across itsay to a tree on the other shore, marked on the drawing here by the letter C (for simplicity, let's ignore the 3rd dimension). How can this be done without actually crossing the river? The usual prescription is as follows. Stick two poles in the ground at points A and B, and with a tape measure or surveyor's chain measure the distance c between them ("the baseline"). An old surveyor's tele- scope (theodolite). Then remove the pole at A and replace it with a surveyor's telescope like the one shown here ("theodolite"), having a plate divided into 360 degrees, marking the direction ("azimuth") in which the telescope is pointing. Sighting the telescope, first at the tree and then at pole B, you measure the angle A of the triangle ABC, equal to the difference between the numbers you have read from the azimuth plate.. Replace the pole, take your scope to point B and measure the angle B in the same way. The length c of the baseline, and the two angles A and B, contain all there is to know about the triangle ABCenough, for instance, to construct a triangle of the same size and shape on some convenient open field.

107. A Math Refresher The sections below are meant to refresh your memory about some basic ideas in algebra and trigonometry. Elements of trigonometry. (M7) What is it good for? http://www-istp.gsfc.nasa.gov/stargaze/Smath.htm

Site Map A Math Refresher "From Stargazers to Starships" tries to be self-contained , even in the mathematics it uses. The sections below are meant to refresh your memory about some basic ideas in algebra and trigonometry. Even if this material is completely new to you, with enough motivation and persistence you should be able to understand it. Care was taken to remove any potential stumbling blocks. And if algebra and trig are old hat to you, rest assured that you will still find here some unexpected goodies. Here is what is covered: Elements of algebra (M-1) Basic ideas (M-1A) Algebra Proficiency Drill (M-2) How it all started (M-3) Formulas (M-4) Identities (M-5) Deriving Approximate Results (M-6) The Theorem of Pythagoras Elements of trigonometry (M-7) What is it good for? (M-8) How to tell sines from cosines (M-9) Deriving sines and cosines (M-10) Going past 90 degrees (M-11) Deriving sin( a+b ), cos( a+b (M-11A) Trigonometry Proficiency Drill (M-12) The Tangent To explore math further, you may look up by Peter Alfeld. We also recommend highly Plus , a free web magazine supported by Cambridge University, England. In its own words, "Plus is an internet magazine published five times a year which aims to introduce readers to the beauty and the practical applications of mathematics."

108. Trigonometry: A Day At The Track trigonometry A day at the track. Half angles Special Values degrees, radians, sin, cos. 0, 0, 0, 1. 30, 45, 60, 90, Relations with HighSchool trigonometry http://www.ugrad.math.ubc.ca/coursedoc/math100/notes/zoo/trig.html

Rates of Growth Derivatives of Trigonometric functions UBC Calculus Online Course Notes Trigonometry: A day at the track Let's suppose we are watching a foot race and while watching the runners, our minds turn in a mathematical direction. Let's focus on one of the runners as she runs in a counter-clockwise direction about the circular track. She is wearing a blue hat as she runs at a constant speed. The picture below shows what we might see from three vantage points. We have three observers who can record her position. One is a photographer directly overhead, in the sponsor's blimp, and two others are on the ground in the bleachers at the East (E) and South (S) end of the track. The photographer in the blimp sees the picture shown above. However, the two observers on the ground see her running past, first one way and then the other. Each one of them can only see a one-dimensional view of her motion, and it might look as though she is bouncing back and forth, like a ping-pong ball. You might think that what these two ground observers are seeing is quite similar. Indeed, in many ways the picture that they see is the same, but they see it at different times. This is what we call a

109. Trig Help - Trigonometry Online Video Lessons Help with trigonometry, trig functions, right triangles, radians, identities, formulas, and graphing. Math and algebra help resources http://www.mathtv.com/Trig/pages/toc.htm

MathTV.com - Algebra and trigonometry video tutorials designed to help high school and college math students improve their math skills. Visit MathTV.com for more videos and learning resources. Select a chapter to begin viewing trig video tutorials. Requires RealPlayer 8 or higher Purchase this trigonometry course on CD-ROM and get higher quality video and no banner ads.

110. Awesome Library - Mathematics trigonometry. 500; trigonometry - Solving Right Triangles (Clark University - Joyce) Provides an explanation and problems for solving right triangles. http://www.awesomelibrary.org/Classroom/Mathematics/Middle-High_School_Math/Trig

Awesome Talking Library Examples ... Spelling Here: Home Classroom Mathematics Middle-High School Math > Trigonometry Trigonometry Also Try Math Lessons (Awesome Library) Provides lessons, worksheets, and activities. 6-00 Lesson Plans Trigonometry - Basic Course (Clark University - Joyce) Provides explanations, diagrams, problems, and answers for basic trigonometry concepts and problems. 4-00 Trigonometry - Equations and Triangles (Thinkquest Team 20991) Provides examples of inverse trigonometry ratios, trigonometry equations, triangles, and laws of sines and cosines. Also includes a quiz. 5-00 Trigonometry - Solving Right Triangles (Clark University - Joyce) Provides an explanation and problems for solving right triangles. Includes answers. 4-00 Trigonometry - Solving a Right Triangle (WebMath) Provides a lesson and the missing information when you fill in portions of the problem. 2-04 Trigonometry Basics (Thinkquest Team 20991) Provides basic trigonometry tutorials for ratios, rotations, radians, graphs and graphing, cofunctions, Pythagorean, quotient identities, cosine, sine, tangent, and double identities. Also includes proving identities. 5-00 Trigonometry Identities (Thinkquest Team 20991) Provides examples to teach about cosine, sine, tangent, and double identities, as well as proving identities. Also includes a quiz. 5-00

111. The U Of O Physics Student Page Vectors trigonometry. The following is a list of problems. To access a problem, click on its title Converting from Polar to Cartesian http://zebu.uoregon.edu/~dmason/probs/bas/trig.html

The following is a list of problems. To access a problem, click on its title: Converting from Polar to Cartesian Coordinates Adding Vectors Hexagon Inscribed in a Circle The Earth Curving Away From You ... Surveying with a Protractor The U of O Physics Student Page last update: September 25, 1995 dmason@zebu.uoregon.edu

112. Precalculus Tutorial Supplemental resources for students enrolled in a Precalculus Course, or a course in College Algebra and trigonometry. http://jwbales.home.mindspring.com/precal/

Precalculus Tutorial This tutorial is designed for students enrolled in a Precalculus Course, or a course in College Algebra and Trigonometry. It does not, and cannot, replace the textbook or other class resources or assignments. At the instructor's discretion, all or part of this tutorial may be assigned to students requesting supplemental resources or to the class at large. Pretest 1. Functions and Graphs 2. Polynomial and Rational Functions 3. Exponential and Logarithmic Functions ... Other online precalculus material All or parts of this resource may be copied and modified provided the following notice is included: "This resource incorporates material developed by John W. Bales, the Department of Chemistry at Tuskegee University, and the Department of Mathematics and Statistics at Georgia State University under a grant from the National Science Foundation." John W. Bales FastCounter by bCentral

113. Trigonometry - A Review trigonometry A Review. Note This text is under construction at this time!!! Please proceed with caution!!! http://www.krellinst.org/UCES/archive/resources/trig/

Trigonometry - A Review Note: This text is under construction at this time!!! Please proceed with caution!!! James A. Sellers

114. Review Of Precaculus Topics Covers graphing, functions, trigonometry review, and abosolute value. http://www.npac.syr.edu/REU/reu94/williams/ch1/ch1_1intro.html

Next: 1 Graphing with Coordinates Ch.1 Review of Needed Topics Michele Williams 1 Graphing with Coordinates in the Plane 1.1 Introduction- Cartesian Coordinate System 1.2 Directions and Quadrants 1.3 The Distance Formula ... About this document ... mx_williams@smcvax.smcvt.edu

115. Math_Tutor Homework help with high school and college algebra, geometry, trigonometry, calculus, statistics and finance. Includes email address and emergency phone numbers. http://www.geocities.com/borrork007/Math_Tutor.html?1013555623293

116. Regents Math A: Right Triangle Trigonometry Right Triangle trigonometry L = Lesson, P = Practice, T = Teacher Resource. Type, Resource Title, Author. L, trigonometry Solving for a Side, Donna Roberts. http://regentsprep.org/Regents/math/math-topic.cfm?TopicCode=rtritrig

117. Online And Private Math, Physics, Engineering, English Tutor In Redwood City & S Subjects include algebra, geometry, trigonometry, precalculus, calculus, differential equations, electrical engineering, and elementary physics, English. Private tutoring is only available in the cities neighboring Redwood City and Santa Rosa. Includes contact information and prices. http://www.freewebz.com/mathtutor/

Welcome to Ask A Tutor Net Online and Private Tutors - Elementary School Through College Level Students Welcome Knowledge Excellence Empowerment Our Service Online Tutoring Private Tutoring Test Preparation ... Become a Private Tutor in your Area Download Example Problems (coming soon) Our Service As online and private tutors for elementary school to college level students, we, at Ask A Tutor dot Net , perform quality tutoring in mathematics, elementary physics, electrical engineering, and/or English courses. We accept students on a single or reoccurring basis. What Students and Parents are Saying Subjects Tutored Math English Sciences Engineering Basic Math Composition Elementary Physics Circuits and Devices Algebra Grammar Biology Statics Pre Algebra Mechanics General Sciences Geometry Spelling Trigonometry Outlining Pre Calculus Sentences Calculus I, II, III Technical Writing Differential Equations Linear Algebra Finite Math Online Tutoring manrao@askatutor.net

118. Right Triangle Trigonometry Math A. Right Triangle trigonometry Solving for an Angle. You can do this!!! trigonometry is easy! . Formulas How to solve a problem that asks for an angle http://regentsprep.org/Regents/math/rtritrig/LtrigA.htm

Math A Right Triangle Trigonometry Solving for an Angle "You can do this!!! Trigonometry is easy!" Formulas: How to solve a problem that asks for an angle: In right triangle ABC, leg BC=15 and leg AC=20. Find angle A to the nearest degree. We will be using the same set up strategy that was discussed on the page for solving for the missing side of a right triangle. Now, divide 15 by 20 to change the fraction into a decimal. You now need to find an angle whose tangent is 0.75. To do this, use your scientific calculator. Enter 0.75 into the calculator. You need to activate the tan key (it is located above the tan key). To activate this tan key, press (or shift) and then the tan key. How to use your TI-83+ graphing calculator with beginning trigonometry. Click calculator.

119. Online And Private Math, Physics, Engineering, English Tutor In Redwood City & S Offers online and local private tutoring for elementary school to college level students. Subjects include algebra, geometry, trigonometry, precalculus, calculus, differential equations, electrical engineering, and elementary physics. Private tutoring is available in Redwood City, California area. Page includes contact information. http://www.askatutor.net/

Welcome to Ask A Tutor Net Online and Private Tutors - Elementary School Through College Level Students Welcome Knowledge Excellence Empowerment Our Service Online Tutoring Private Tutoring Test Preparation ... Become a Private Tutor in your Area Download Example Problems (coming soon) Our Service As online and private tutors for elementary school to college level students, we, at Ask A Tutor dot Net , perform quality tutoring in mathematics, elementary physics, electrical engineering, and/or English courses. We accept students on a single or reoccurring basis. What Students and Parents are Saying Subjects Tutored Math English Sciences Engineering Basic Math Composition Elementary Physics Circuits and Devices Algebra Grammar Biology Statics Pre Algebra Mechanics General Sciences Geometry Spelling Trigonometry Outlining Pre Calculus Sentences Calculus I, II, III Technical Writing Differential Equations Linear Algebra Finite Math Online Tutoring manrao@askatutor.net

120. SCORE Mathematics Lessons . CA Standards Links. NCTM Standards Links. Noon Project Revisited 2200 years......SCORE Mathematics. trigonometry. Lesson Title/ http://score.kings.k12.ca.us/trigonometry.html

SCORE Mathematics Trigonometry Lesson Title/Description CA Standards Links NCTM Standards Links Noon Project Revisited 2200 years ago, Eratosthenes calculated the circumference of the Earth from the measurements of two shadows (in a well and from a pole). The Noon Project is an annual Internet event for schools to team up and make their own measurements. Using the reported 1995 shadow measurements, you can perform the calculations to determine the diameter of the Earth. Suggestions or comments to Jim Shaver Last updated June 1, 2000

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