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 * Aim: What are the six trignometric functions of an angle?


 * We all know that there are 3 trigonometric functions: sine, cosine, and tangent. I bet you didn't know that there are actually 6 trig functions. Watch the video to learn the other three trig functions. Be sure to take notes. Answer the following questions when you are done.

1. What are the six trigonometric functions? 2. What are their relationships? 3. Which are reciprocal functions? 4. Create a nmemonic device to help you remember the six trig functions and their relationships.

[|6 trig functions]


 * Now let's see how we can use this with a right triangle. See if you can find the presenter's error.

[|Practice with the six trig functions]


 * Now try these for classwork. Finish the rest for homework.

[|6_Trig_Functions.JPG]

Answers

[|A-6_Trig_Functions.JPG]


 * Journal entry: The word "trigonometry" has Greek roots. Look up these roots and compare the roots to the mathematical definition of trigonometry.