Because the values of circular functions repeat every 21, they are used to describe things...
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Because the values of circular functions repeat every 21, they are used to describe things that repeat periodically. For example, the maximum afternoon temperature in a given city might bemodeled by the formula below. In the formula, t represents the maximum afternoon temperature in month x, with x = 0 representing January, x= 1 representing February, and so on.t=40-20 cos x?/6The maximum afternoon temperature in March is.(Round to the nearest integer as needed.)
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