Tangent of Theta +90

This applet uses the original geometric definition of a tangent to demonstrate the identity [math]\tan(\theta +90)=-cot\theta[/math]. It requires a bit of work on the part of students to show that the two right triangles are similar and then to set up proportions and assign signs.

 

dborkovitz

 
Materialtyp
Aktivität
Tags
exploration  identities  tangent-function  trigonometry 
Zielgruppe (Alter)
15 – 18
Sprache
English (United States)
 
 
GeoGebra Version
4.0
Ansichten
2874
Kontaktiere Autor des Materials
 
 
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