4g Warm up (Graphs of Inverse Trig Functions)

The video tutorial explores inverse trigonometric functions, emphasizing the importance of restrictions to make functions invertible. It begins with an introduction to inverse functions, followed by a warm-up exercise solving inverses algebraically and graphically. The tutorial explains how to apply restrictions to functions, particularly trigonometric ones, to ensure they have inverses. Graphing techniques for inverse trigonometric functions are demonstrated, highlighting the need for domain restrictions. The tutorial concludes by reinforcing the concept of restrictions as essential for finding inverses, using algebraic and trigonometric examples.

What is the first step in finding the inverse of a function algebraically?

• Add a restriction

• Swap the variables

• Graph the function

• Set the function equal to Y

Why is it necessary to apply restrictions to some functions to find their inverses?

• To eliminate asymptotes

• To change the function's range

• To simplify the graph

• To make them one-to-one

Which test do trigonometric functions fail, indicating they are not one-to-one?

• Slope test

• Horizontal line test

• Vertical line test

• Derivative test

What is the domain restriction for the inverse tangent function?

• 0 to π

• -π/2 to π/2

• -1 to 1

• 0 to 2π

How is the inverse cosine function restricted to make it invertible?

• Between 0 and π

• Between -π/2 and π/2

• Between 0 and 2π

• Between -1 and 1

What is the range of the inverse sine function after applying restrictions?

• -π/2 to π/2

• 0 to π

• 0 to 2π

• -1 to 1

What notation can be used as an alternative to the inverse trigonometric function notation?

• Arc notation

• Logarithmic notation

• Polynomial notation

• Exponential notation

In which quadrants do the angles for the inverse tangent function lie?

• 1st and 2nd

• 1st and 4th

• 2nd and 3rd

• 3rd and 4th

What is the domain of the inverse cosine function?

• -1 to 1

• 0 to π

• -π/2 to π/2

• 0 to 2π

Why is it important to stay within the restrictions when dealing with inverse trigonometric functions?

• To avoid complex numbers

• To ensure the function remains invertible

• To match the unit circle

• To simplify calculations