4.4 Trigonometric Functions of Any Angle

Let be an angle in Standard position and (x,y) on the terminal side Let r ≠ 0

Let (-5,12) be a point on the terminal side of Find the Sin, Cos and Tan

Reference Angles What is the value of Sin 30º and Sin 150º ?

Reference Angles What is the value of Sin 30º and Sin 150º ? Why not just use Sin 30º Good news you can, 30º is the reference angle for 150º But Cos 30º ≠ Cos 150º; How are they related?

Reference Angles How to find a Reference Angle. All reference angles are During a Code Blue you need to get into the closest classroom; the reference angle is the closest angle to 180º or 360º.

Reference Angles Finding the reference angle What is the reference angle of 110º ? What is the reference angle of 284º ? What about 72º ?

Reference Angles Finding the reference angle What is the reference angle of ? What about 1.8 radians ?

What is the exact value of Sin What is the reference angle of

What is the exact value of Sin What is the reference angle of What is

What is the exact value of Sin What is the reference angle of What is What Quadrant is in ?

What is the exact value of Sin What is the reference angle of What is What Quadrant is in ? So

Find Sec What is the coterminal angle with ? What quadrant is in?

Find Sec So the we need to find

Using Trigonometric Identities Given: Find

Using Trigonometric Identities Given: Find

Homework Page 297 – 299 # 3, 9, 16, 22, 28, 34, 40 ,46, 52, 58, 64, 74, 82, 90, 96

Homework Page 297 – 299 # 6, 13, 19, 25, 31, 37, 43, 49, 55, 61, 70, 78, 86, 94, 97