Lesson 5: Trigonometric sum and difference identities

Complete the exercises in this section at your pace. Before you begin, click on “Materials” to verify what’s covered. The Geogebra Activity for this lesson will be created only upon request, and you’ll receive a link in your inbox to join a class in Realtime! Also, if you haven’t signed up for the IXL SKILLS PACKAGE yet, the login credentials you’ll receive from the link below, will expire after 2 days.

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Warmup

Activity #1 (30 minutes)

1. Topic: Trigonometric sum and difference identities(Applet).

Practice Exercise

Topic: Trigonometric sum and difference identities.

Quiz Time – (Two sets: 30 minutes each).

Topic: Trigonometric sum and difference identities.

  1. An applet.
  2. Exercise questions on "Trigonometric sum and difference identities". The questions exhibit an increasing order of difficulty. 
  3. Two sets of quizzes on "Trigonometric sum and difference identities". The questions exhibit an increasing order of difficulty, and an average score of 80% expected.