Basic Circle Functions

Tema:Círculo, Coseno, Funciones, Seno, Función Tangente, Trigonometría

David Joyce is a brilliant visual thinker and representer, and he has this great image at the beginning of his trigonometry short course. See the course at http://www.clarku.edu/~djoyce/trig/

Nuevos recursos

Building Algebra Tile Models for Trinomials
繪畫垂直線
Squaring a Rectangle (PST Version)
Odd Function Explorer
Graphing Basic and Compound Inequalities

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Zaslavsky
pos3_1
Select point D and notice the relationship between the angles as you move it around
Completing the Square Demo
Problem 6.9

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Triángulos Semejantes
Media Geométrica
Ecuaciones lineales
Ecuaciones
Ángulos