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domanhsy10012001
2 năm trước
1) Tổng(hiệu) sau làn Số nguyên tố hay hợp số? A)E=987654321+314 2)Tìm x thuộc n A)24 chia hết cho 2n+1 B)3n+5 chia hết cho 3n+2 C)2n+3chia hết 3n+1
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