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25 March, 12:13

Identify the maximum and minimum values of the function y = 3 cos x in the interval [-2π, 2π]. Use your understanding of transformations, not your graphing calculator.

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  1. 25 March, 12:22
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    The max and min of y. = Cos x is 1 and - 1. The amplitude change of 3, y = 3cos x, means that the height of the graph will go up to 3 and down to - 3.

    Min = - 3, Max = 3
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