### Chapter 4 - Trigonometry

```Chapter 4
Trigonometry
Section 4.1: Figure 4.1, Terminal and Initial
Side of an Angle
4|2
Section 4.1: Figure 4.2, Angle in Standard
Position
4|3
Section 4.1: Figure 4.3, Positive and
Negative Angles
4|4
Section 4.1: Figure 4.4, Coterminal Angles
4|5
Section 4.1: Figure 4.5, Illustration of Arc
Length
4|6
Section 4.1: Figure 4.6, Illustration of Six
4|7
Section 4.1: Figure 4.7, Common Radian
Angles
4|8
Section 4.1: Figure 4.13, Common Degree
Measures on the Unit Circle
4|9
Section 4.2: Figure 4.23, Common Values
on a Unit Circle
4 | 10
Section 4.2: Figure 4.25, Unit Circle and
Periodic Behavior
4 | 11
Section 4.2: Exercises 53-56
4 | 12
Section 4.3: Right Triangle Definitions of
Trigonometric Functions
4 | 13
Section 4.3: Sines, Cosines, and Tangents
of Special Angles
4 | 14
Section 4.3: Fundamental Trigonometric
Identities
4 | 15
Section 4.4: Figure 4.37, Signs of the
Trigonometric Functions
4 | 16
Section 4.4: Trigonometric Values of
Common Angles
4 | 17
Section 4.5: Figure 4.49, Key Points in the
Sine and Cosine Curves
4 | 18
Section 4.6: Figure 4.59, Graph of Tangent
Function
4 | 19
Section 4.6: Figure 4.62, Graph of
Cotangent Function
4 | 20
Section 4.6: Figure 4.64, Graphs of
Cosecant and Secant Functions
4 | 21
Section 4.6: Figure 4.70, Graphs of Basic
Trigonometric Functions
4 | 22
Section 4.7: Figure 4.74, Graphs of
Inverse Trigonometric Functions