Unit Circle Trig

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# Unit Circle Trig - PowerPoint PPT Presentation

Unit Circle Trig. TS : Making decisions after reflection and review Warm Up: Test your unit circle knowledge. You have 3 minutes. (This is a generous amount of time for something that is supposed to be memorized.). Definition of Trig Functions.

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## Unit Circle Trig

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Presentation Transcript

### Unit Circle Trig

TS: Making decisions after reflection and review

Warm Up:

Test your unit circle knowledge. You have 3 minutes.

(This is a generous amount of time for something that is supposed to be memorized.)

Definition of Trig Functions

Let t be a standard position angle. If (x,y) is a point r units from the origin.

sin t = csc t =

cos t = sec t =

tan t = cot t =

y

(x,y)

r

x

The point (3, -9) is on the terminal side of an angle in standard position. Determine the exact values of the six trigonometric functions of the angle.

What is the measure of the angle in degrees?