a) D=(-∞; -5) ∪ (0; 3)" id="MathJax-Element-22-Frame" role="presentation" style="position:relative" tabindex="0">
D=(-∞; -5) ∪ (0; 3)" role="presentation" style="position:relative" tabindex="0">b) D=(-∞; -5) ∪ (0; 3)" id="MathJax-Element-22-Frame" role="presentation" style="position:relative" tabindex="0">
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