1. Section 3 – Graphing Sine and Cosine Functions
Chapter 6
Section 3 – Graphing Sine and Cosine Functions

2. Properties of y = sin x The period is 2π The domain is IR
The range is [-1,1]
The x-intercepts are located at nπ
The y-intercept is 0

3. Examples EX 1: Find sin 9π/2 by referring to the graph.
EX 2: Find the values of Ѳ for which sin Ѳ = 0.
EX 3: Graph y = sinx for 3π ≤ x ≤ 5π

4. Properties of y = cos x The period is 2π The domain is IR
The range is [-1,1]
The x-intercepts are π/2 + nπ
The y-intercept is 1

5. Assignment
Chapter 6, Section 3
pgs #14-24E,28-34E,41,42,