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Sine and Cosine of Complimentary Angles

Bellringer:

Use the following figure to complete tasks 1-5.

Task 1

What is the measure of 𝛼 +𝛽? How do you know?

Task 2

Use trigonometric ratios (sin, cos, or tan) to describe two different ways.

Task 3

Use trigonometric ratios (sin, cos, or tan) to describe two different ways.

Task 4

What can you conclude about sin and cos?

Task 5

What can you conclude about cos and sin?

Task 6

Task 7

Exit Ticket

What did you learn about the relationship between the sine and cosine of a pair of angles that are complementary?