How to find the range of the sine and cosine graph

The video tutorial explains the concepts of domain and range in functions, focusing on sine and cosine. It uses the unit circle to evaluate these functions, highlighting the importance of angles and the radius. The tutorial demonstrates graphing sine and cosine, emphasizing the range of these graphs, which is between -1 and 1. It concludes by summarizing the range of trigonometric functions, including cotangent.

What is the domain of a function?

• The minimum input value

• The maximum output value

• All possible input values

• All possible output values

What is the radius of the unit circle used in trigonometric evaluations?

• 2

• 0.5

• 3

• 1

Which of the following angles is commonly used in evaluating sine and cosine functions?

• π / 10

• π / 2

• π / 5

• π / 8

What is the range of the sine function?

• Between -2 and 2

• Between -1 and 1

• Between 0 and 2

• Between 0 and 1

How does the graph of the cosine function behave?

• Starts at 2 and goes to -2

• Starts at -1 and goes to 1

• Starts at 1 and oscillates between -1 and 1

• Starts at 0 and goes to 2π