Determine the number of maximal connected intervals in [-10, 10] where the function f(x) = 2(-5((-1(1cos(3πx + 1) - 3) + 2)/(-1(1cos(3πx + 1) - 3)))^2 + 5((-1(1cos(3πx + 1) - 3) + 2)/(-1(1cos(3πx + 1) - 3))) - 1) - 5 is strictly decreasing.

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