sin(a + b) & cos(a + b) - Discovery

Topic:Angles, Triangles, Trigonometric Functions

Directions are given in the applet below.

Use your results to write 2 new trigonometric identities from what you now see. After doing so, go to the following applet: http://tube.geogebra.org/m/1651617

New Resources

Exploring GeoGebra for the First Time
Volume by Disk/Washer around y
Reflection across a line
Triangle with 3 Right Angles
Locus Related to Descartes' Folium

Discover Resources

Trigonometric ratios
Exploring Quadrilaterals
test2JS
Blame it on Euler
Transformation Triangle - parallel lines
H2M L15 Q8

Discover Topics

Power Functions
Conditional Probability
Upper and Lower Sum or Riemann Sum
Poisson Distribution
Volume