Trigonometry - Wikipedia
Trigonometry (from Greek trigōnon, "triangle" and metron, "measure") is a branch of mathematics that studies relationships involving lengths and angles of triangles.The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.. The 3rd-century astronomers first noted that the lengths of the sides of a right-angle triangle and the ...
History of trigonometry - Wikipedia
Ancient Greek and Hellenistic mathematicians made use of the chord.Given a circle and an arc on the circle, the chord is the line that subtends the arc. A chord's perpendicular bisector passes through the center of the circle and bisects the angle.
Free Trigonometry Tutorials and Problems
Free Trigonometry Tutorials and Problems. Free tutorials and problems on solving trigonometric equations, trigonometric identities and formulas can also be found.
Trigonometry Calculator - Carbide Depot
Enter all known variables (sides a, b and c; angles A and B) into the text boxes. To enter a value, click inside one of the text boxes.
Trigonometry For Dummies: Mary Jane Sterling ...
A plain-English guide to the basics of trig. Trigonometry deals with the relationship between the sides and angles of triangles... mostly right triangles.
Trigonometry & Calculus - WebMath
Trigonometry & Calculus - powered by WebMath. Click here for K-12 lesson plans, family activities, virtual labs and more!
Trigonometry Calculator - Solve Math Problems
Trigonometry, which studies the measure of triangles, takes algebra to the next level. Its most well-known features include the Pythagorean Theorem and the sine, cosine, and tangent ratios.
Amazon.com: Trigonometry - Mathematics: Books
Online shopping for Trigonometry - Mathematics from a great selection at Books Store.
The Six Trigonometric Functions Calculator
An online easy to use calculator that calculate the six trigonometric functions. The input may be either in degrees or radians
Math Study Guides - SparkNotes
math. We make the study of numbers easy as 1,2,3. From basic equations to advanced calculus, we explain mathematical concepts and help you ace your next test.