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# What are some examples using sinusoidal functions in real life?

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In the real world, sinusoidal functions can be used to describe mechanical functions such as the swinging of a pendulum or natural phenomena such as hours of daylight. Sinusoidal functions graph wave forms.

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Credit: Dave Fayram CC-BY-SA 2.0

As such, sinusoidal functions can be used to describe any phenomenon that displays a wave or wave-like pattern or by extension any predictable periodic behavior. They are applicable in many real life cases.

• The periodic rotations of a crankshaft in an engine
• The rotation of a Ferris wheel
• The fluctuating hours of daylight in a specific location throughout a calendar year
• Fluctuating use of energy to heat a home through the seasons.
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## Related Questions

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The end behavior of asymptotes of functions can be predicted using either polynomial long division or synthetic division. Finding the end behavior of asymptotes is valuable in circumstances where the degree of the numerator exceeds the degree of the denominator and neither term can be canceled out. Using the process of either polynomial long division or synthetic division produces the end product of an oblique asymptote, which is a type of linear function.

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The cosine function is one of the three basic functions used in trigonometry. The cosine of a right triangle is found by taking the ratio of the length of the triangle's adjacent side over the length of the hypotenuse. In other words, divide them.

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The six trigonometric functions are the sine, cosine, tangent, cosecant, secant and cotangent. The functions are used to find a ratio between the sides of a right triangle when given one angle. They are used to evaluate numbers given in either degrees or radians.