options: Interpret expressions for functions in terms of the situation they model.

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

Build a function that models a relationship between two quantities.

Extend the domain of trigonometric functions using the unit circle.

Prove and apply trigonometric identities.

Build new functions from existing functions.

Analyze functions using different representations.

Use functions to model relationships between quantities.

Define, evaluate, and compare functions.

Construct and compare linear and exponential models and solve problems.

Model periodic phenomena with trigonometric functions.

Understand the concept of a function and use function notation.
problem_activity: Problem 1
Find
$${\mathrm{sin}(u-v)}$$
given
$${\mathrm{sin}(u)={8\over17}}$$
with
$${0\leq u \leq {\pi\over2}}$$
and
$${\mathrm{cos}(v)=-{24\over25}}$$
with
$${\pi \leq v \leq {3\pi\over2}}$$
.
Problem 2
Evaluate:
$${\mathrm{sin}(-15^{\circ})}$$
$${\mathrm{cos}(15^{\circ})}$$


correct_option_index: 4