Example 1

Author:
Walch Education
Find if .
GeoGebra Applet
  1. Set up the identity.
  2. Substitute the values of the angles into the identity and simplify.
  3. Verify the identity by calculating the sine of and the cosine of using a scientific calculator.
This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information.

Similar Resources

Discover GeoGebra

New Resources