GeoGebra
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GeoGebra
Trigonometric Identities
Pythagorean Identities
Even/Odd Identities
Cofunction Identities
Identities from Similar Right Triangles
Sum & Difference Identities
Other Identities
Laws of Sines and Cosines
Older (Earlier) Applets
Trigonometric Identities
Author:
Tim Brzezinski
Topic:
Cosine
,
Sine
,
Trigonometric Functions
,
Trigonometry
Table of Contents
Pythagorean Identities
Pythagorean Trigonometric Identity (1)
Trig ID Movie (II)
Trig ID Movie (III)
Even/Odd Identities
Sine and Cosecant Functions (Special Property)
Sine Identity
Cosine and Secant Functions (Special Property)
Cosine Identity
Tangent and Cotangent Functions (Special Property)
Tangent Identity
Cofunction Identities
Special Trigonometric Identities: Quick Exploration
Identities from Similar Right Triangles
New Trig IDs From Similar Right Triangles
New Trig ID's from Similar Right Triangles (V2)
Sum & Difference Identities
Sine & Cosine of a Sum: Discovery
Trig ID: Geometric Investigation
Tangent of a Sum: Discovery
Tangent of a Difference: Trig Identity Puzzle + Proof!
Cotangent of a Sum: Discovery
Other Identities
Bizzare Trig Identity?
3 Squares Problem
A Very Unusual Trig Identity
Laws of Sines and Cosines
Triangle Investigation
Law of Sines (& Area)
Law of Cosines: Discovery
What "CO" in COsine Means
Older (Earlier) Applets
sin(a + b) & cos(a + b) - Discovery
sin(a + b) & cos(a + b) - Discovery - (Solution)
sin(75) & cos(75) activity
Related Topics
Continuity
Curve Sketching
Exponential Functions
Function Graph
Linear Functions
Discover Resources
T2 ex 20
Test
PhasePortrait
Intro Day
Image from Elliptical Lens
Discover Topics
Logarithmic Functions
Circle
Tangent Line or Tangent
Incircle or Inscribed Circle
Arithmetic Mean
