Inverse Trigonometric Functions · Review Exercise 84
Use this scenario: The population of a city has risen and fallen over a 20-year interval. Its population may be modeled by the following function: where the domain is the years since 1980 and the range is the population of the city.
Over this domain, when does the population reach 18,000? 13,000?
Its source prints no answer for this problem, so there's nothing to check against.
OpenStax, Algebra and Trigonometry 2e · §8.3 Inverse Trigonometric Functions · Review Exercise 84
No hints for this one.
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