Use the trigonometric substitution to rewrite the algebraic expression as a trigonometric function of θ, where 
.Then find sin θ and cos θ. 
Definitions:
Learning
The process of acquiring new understanding, knowledge, behaviors, skills, values, attitudes, or preferences through study, experience, or teaching.
Extinction
in behavior science, refers to the process by which a previously reinforced behavior is weakened by ceasing to provide reinforcement.
UCS
An abbreviation for Unconditioned Stimulus, a stimulus that naturally and automatically triggers a response without any prior conditioning in behavioral psychology.
Advertising Wearout
The decline in audience response or engagement with an advertisement over time, often due to overexposure or failure to refresh content.
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