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11. [-/3 Points] DETAILS Find the amplitude and period of the function. y = cos 2x amplitude period Sketch the graph of the function.

11. [-/3 Points] DETAILS Find the amplitude and period of the function. y = cos 2x amplitude period Sketch the graph of the function. y 4r 4t T T 122 x 3 T 4 2 -2 0-41 KIN T T 2

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