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	Các bình luận về: Tìm tất cả các giá trị nguyên của tham số \(m\) thuộc đoạn \(\left[ { &#8211; 2020;2021} \right]\) để bất phương trình \({9^{x &#8211; 1}} &#8211; 2m{.3^x} &#8211; m &gt; 0\) nghiệm đúng \(\forall x \in \mathbb{R}\).
A. \(4041\).	B. \(2020\).	C. \(4042\).	D. \(2021\).	</title>
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