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

Mandelbrot
Rovnoběžnost rovin
Calculating Arc Length, Radius, and Central Angle
Modifiable Right Triangular Prism
Odd Function Explorer

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alternate interior angles
Bunny
complementary angles in right triangles
Vinkelsum i trekant
Images . Truncated dodecahedron (V=60) from Biscribed Pentakis Dodecahedron for the case of trisection of its 2nd-order segments

Discover Topics

Real Numbers
Intersection
Root
Geometric Mean
Integers