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Determine the amplitude and period of each function without graphing.

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Determine the amplitude and period of each function without graphing.

y = - 4 cos(2x)
asked Jan 26, 2015 in PRECALCULUS by anonymous

1 Answer

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Step 1:

The function is image.

A sinusoidal form of the function is image.

Compare the above two functions,

Amplitude, image

Period, image

Solution :

Amplitude of the function image

Period of the function image

answered Jan 26, 2015 by james Pupil

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