For the function f(x) = 5(-3sin(1π((3x + 1)/(2x - 3)) - 3) - 1)^2 + 5(-3sin(1π((3x + 1)/(2x - 3)) - 3) - 1) - 1, 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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