✨ Best Answer ✨
例6上…{2,6}、下…{1,2,3,4,6,8,10}
練習6(1){2,4,6}、(2){1,2,3,4,6,8} (3)∅ (4){1,2,3,4,6,8}
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✨ Best Answer ✨
例6上…{2,6}、下…{1,2,3,4,6,8,10}
練習6(1){2,4,6}、(2){1,2,3,4,6,8} (3)∅ (4){1,2,3,4,6,8}
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