OpenStax, Precalculus 2e §7.6 Modeling with Trigonometric Functions · Exercise 23 · Trigonometry · Identities

Modeling with Trigonometric Functions · Exercise 23

Construct a sinusoidal function with the provided information, and then solve the equation for the requested values.

The sea ice area around the North Pole fluctuates between about 6 million square kilometers on September 1 to 14 million square kilometers on March 1. Assuming a sinusoidal fluctuation, when are there less than 9 million square kilometers of sea ice? Give your answer as a range of dates, to the nearest day.

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OpenStax, Precalculus 2e · §7.6 Modeling with Trigonometric Functions · Exercise 23

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