1. Trig Functions – Part 1 33 22 11 Pythagorean Theorem & Basic Trig Functions Reciprocal Identities & Special Values Practice Problems

2. Pythagorean Theorem  Used on Right Triangles only  a 2 + b 2 = c 2  Alternate forms: 2

3. Basic Trig Functions  Uses Right Triangle defined in terms of Adjacent, Opposite and Hypotenuse  Hypotenuse is always the longest side  Opposite and Adjacent are relative to the angle 3

4. Basic Trig Functions 4

5. Reciprocal Identities  Each Basic Trig Identity’s inverse is the definition of another identity 5

6. Special Values Q (radians) Q (degrees) sin Q cos Q tan Q cot Q sec Q csc Q 6

7. Using This Stuff 7

8. Using This Stuff (Cont.) 8

9. Another Example 9

10. Practice Problems  Page 425 Problems 3-25 odd and 29-34 10