UCSS Math II 5.9.6 Example 3

Author:
Walch Education
Topic:
Sine
Find the exact value of without a calculator by using the angle sum or angle difference formulas.
GeoGebra Applet
  1. Find two special angles that have a sum or difference of .
  2. Rewrite as the sum of these two special angles and evaluate the resulting equation using the angle sum formula for sine.
This applet is provided by Walch Education as supplemental material for the UCSS Secondary Math II program. Visit www.walch.com for more information on our resources.

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