options: Construct and compare linear and exponential models and solve problems.

Build a function that models a relationship between two quantities.

Prove and apply trigonometric identities.

Extend the domain of trigonometric functions using the unit circle.

Interpret functions that arise in applications in terms of the context.

Model periodic phenomena with trigonometric functions.

Use functions to model relationships between quantities.

Analyze functions using different representations.

Build new functions from existing functions.

Define, evaluate, and compare functions.

Understand the concept of a function and use function notation.

Interpret expressions for functions in terms of the situation they model.
problem_activity: Find two values where
$${\mathrm{cos}x=-1}$$
.
What is
$${\mathrm{arccos}(-1)}$$
?


correct_option_index: 5