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These are two of the three Angle Sum Identities These are two of the three Angle Difference Identities.

Published bySharyl Hensley Modified over 9 years ago

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Presentation on theme: "These are two of the three Angle Sum Identities These are two of the three Angle Difference Identities."— Presentation transcript:

1 These are two of the three Angle Sum Identities These are two of the three Angle Difference Identities

2 Find Using your trig tables and the sum/difference identities

3 Find Using your trig tables and the sum/difference identities

4 (1, 0) Notice that the angles we just used were the special angles from your trig tables…

5 Find Using your trig tables and the sum/difference identities

6 (3, 4) (–5, 12) Find the sine and cosine for both angles

7 Use the answers you have and the composite identities to solve the given problems

8 Find Using your trig tables and the sum/difference identities

9 Find x Using your trig tables and the sum/difference identities

10 Find x Using your trig tables and the sum/difference identities

11 Find x Using your trig tables and the sum/difference identities If we want to express our answers as the smallest positive angles…

12 Assignment 3-3: Pg. 114 #1 a) b), 2 a) b), 3, 4, 5, 8, 10

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