For the function f(x) = 3sin(3π(2((2(5x^2 + 4x + 2))/(-2(5x^2 + 4x + 2) + 3)) - 4) + 1) + 3, 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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