On how many maximal connected intervals within [-10, 10] is the derivative of f(x) = (3(-4(3cos(1π(3x + 2) + 3) - 2)^2 + 2) - 1)/(-2(-4(3cos(1π(3x + 2) + 3) - 2)^2 + 2) - 3) positive?

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