(12,11)→ ¬X; 18

Toán BÁO CÁO TOÁN HỌC FANS AND BUNDLES IN THE GRAPH OF PAIRWISE SUMS AND PRODUCT POTX

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Đáp án tham khảo

11: (12,11)→ ¬x; 18 : (19,18)→ ¬x; 32: (12,32)→ ¬x; 90: (19,90) → ¬x;