The amplitude of the cosine function, $$2\cos(x)$$ , is ____...

Question Analysis
This problem assesses the understanding of the amplitude of the cosine function.

Key Concept Explanation
The amplitude of a trigonometric function is the maximum distance from the midline (y = 0) to the peak or trough. For the standard cosine function, , the amplitude is 1 because the range of the function is

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