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

Isosceles Triangle: Quick Construction
Angles and Intersecting Lines: Quick Investigation
Simplifying Radicals: Geometric Thin Slice
Slope Field (1)
Construct a Square

Discover Resources

graph 9
Transformations
Part1
Rotations
In-Game Mode

Discover Topics

Variance
Mode
Addition
Constructions
Cuboid