Question 22: The function y = f (x) has the following variation table Which of the following statements is true?

TXĐ: \(D=(-\infty;2)\cups (2;+\infty)\)

Based on the variation table, we have y’<0 for all \(please D\). So the above inverse function \((-\infty;2)\cups (2;+\infty)\)

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