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

Segment Addition Postulate (Mild Questions)
Graphing Basic and Compound Inequalities
Rovnoběžnost rovin
Isosceles Right Triangle
Angle Addition Postulate (V2) - Integer Solutions

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Triangular Prism
Triangular Pyramid
Sophie, #42
Tọa độ 3D
Lesson Summary - Opposite, Adjacent, Hypotenuse

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Numbers
Tangent Line or Tangent
Function Graph
Interest Calculation
Square