Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Proving Trigonometric identity: sin(2x) = 2sin(x)cos(x)
Author:
Apolinario "Sam" Ortega
Topic:
Cosine
,
Functions
,
Sine
Proving Trigonometric identity : sin(2x)=2sin(x)cos(x)
GeoGebra
Try moving the black sine wave graph. What do you see underneath?
New Resources
Angles and Intersecting Lines: Quick Investigation
Witch of Agnesi - A Classical Construction
Simplifying Radicals: Geometric Thin Slice
Napoleon's Theorem
Rotating Points (Optical Illusion)
Discover Resources
Ball Toss
day 88
Elliptic Paraboloid
Exponent Laws 1
TrimangoZ Treasure Hunt
Discover Topics
Isosceles Triangles
LCM and GCD
Polygons
General Quadrilateral
Fractions