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

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