For the function f(x) = -3((-3(3sin(3πx - 1) - 3) + 1)/(2(3sin(3πx - 1) - 3)))^2 - 5((-3(3sin(3πx - 1) - 3) + 1)/(2(3sin(3πx - 1) - 3))) + 4, find the number of maximal connected intervals in [-10, 10] where f'(x) > 0.

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