Find the x-coordinates where f '(x) = 0 for f(x) = 2x - sin(2x) in the interval [0, 2π].

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Step-by-step explanation:

The given function is .

We differentiate the given function with respect to x, to obtain;

We find the x-coordinates where .

In the first quadrant,

In the fourth quadrant,

Since this function has a period of another will occur at

Therefore has horizontal tangents at on

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step-by-step explanation:

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answer: 12

step-by-step explanation:

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