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	Các bình luận về: [Trắc nghiệm VD-VDC Toán 2020] Câu 41: Cho \(a,b &gt; 0\) thỏa mản \({\log _4}a = {\log _6}b = {\log _9}\left( {a + b} \right).\)Giá trị của \(\frac{a}{b}\) bằng	</title>
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