Determine the number of maximal connected intervals in [-10, 10] where the function f(x) = 3|((1(1cos(3πx + 3) + 1) - 2)/(-2(1cos(3πx + 3) + 1) - 1)) - 3| - 3 is strictly decreasing.

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