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categoryالرياضيات schoolبكالوريوس event_available2026-07-15

السؤال

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1.2-8. A universal set is S = {-20<s≤-4}. If A = (-10 ≤s≤-5} and B = (-7<s<-4), find: (a) AUB (b) ANB (c) A third set C such that the sets ANC and BNC are as large as possible while the smallest element in C is -9.

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