Simple proof of the formula for sin(α + β) & cos(α + β) --> for (α + β) <90°

What do you want to download?

You can either download the .ggb file alone or the complete webpage for students with tasks.

I agree to the terms of GeoGebra's non-commercial license

• Offline Activity (.zip)

• GeoGebra Files

  1. Verze 1 (.ggb)
     
  2. Verze 2 (.ggb)