For the function f(x) = -4(2|((-3(3cos(1πx - 1) + 3) + 2)/(2(3cos(1πx - 1) + 3) - 1)) - 2| - 2)^2 - 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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