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

Basic and Compound Inequality Illustrator
Deriving the Sector Area Formula
Midpoint Theorem Questions: Mild
Midpoint Theorem (V2): Integer Solutions
Angle Addition Postulate (V2) - Integer Solutions

Discover Resources

解析幾何：線對稱
LineReflection
limite di x tendente a x0 con f(x)=infinito
polynomial
House example

Discover Topics

Upper and Lower Sum or Riemann Sum
Vectors 2D (Two-Dimensional)
Coordinates
Tangent Function
Algebra