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

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