Trigonometric Functions:

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Presentation transcript:

Trigonometric Functions: Section 6.2 Trigonometric Functions: Unit Circle Approach

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Make a second congruent triangle. This triangle is equilateral so all sides are 1. 2a = 1 so a = . Use Pythagorean Theorem to find b.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall.

Your calculator has buttons for sin, cos, and tan so to find values of the remaining 3 trigonometric functions we use:

CHANGE MODE TO RADIANS

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