On how many maximal connected intervals within [-10, 10] is the derivative of f(x) = -3((-1(-3|(-2cos(3πx + 3) - 1) + 2| - 2) - 3)/(1(-3|(-2cos(3πx + 3) - 1) + 2| - 2) + 1))^2 - 3((-1(-3|(-2cos(3πx + 3) - 1) + 2| - 2) - 3)/(1(-3|(-2cos(3πx + 3) - 1) + 2| - 2) + 1)) - 3 positive?

Present the answer in LaTex format: \boxed{Your answer}
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