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