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OpenStax, Precalculus 2e §7.6 Modeling with Trigonometric Functions · Exercise 41 · Trigonometry · Identities

Modeling with Trigonometric Functions · Exercise 41

Create a function modeling the described behavior. Then, calculate the desired result using a calculator.

A certain lake currently has an average trout population of 20,000. The population naturally oscillates above and below average by 2,000 every year. This year, the lake was opened to fishermen. If fishermen catch 3,000 fish every year, how long will it take for the lake to have no more trout?

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OpenStax, Precalculus 2e · §7.6 Modeling with Trigonometric Functions · Exercise 41

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