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luuna20002
2 năm trước
1. Tìm số tự nhiên n, biết: 49.$7^{n}$=2401. Kết quả n là... 2. Kết quả so sánh $3^{500}$ và $7^{300}$ là... Điền kết quả luôn, ko cần rườm rà
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