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GeoGebra

Unit Circle and Sine/Cosine Graph

Author:Andrea Becker, Anthony OR 柯志明

The Sine Graph. Move the green theta slider at the top and see how the sine graph is created and related to the unit circle.

Sine Graph

What value is the sine graph tracing as the angle moves around the unit circle?

At what values does the sine graph equal zero?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

At what value does the sine graph equal one?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

At what value does the sine graph equal negative one?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

STOP

Go to page 42 in your FST book and answer the questions.

The Cosine Graph - Move the green theta slider at the top and see how the cosine graph is created and related to the unit circle.

Cosine Graph

What value is the cosine graphing tracing as the angle moves around the unit circle?

At what values does the cosine graph equal zero?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

At what value does the cosine graph equal one?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

At what value does the cosine graph equal negative one?

Select all that apply
  • A
  • B
  • C
  • D
  • E
Check my answer (3)

STOP

Go to page 44 in your FST book and answer the questions.

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