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	Các bình luận về: 65 (THPT Yên Phong 1 &#8211; Bắc Ninh &#8211; 2022) Cho hàm số \(y = f\left( x \right).\) Hàm số \(y = f&#8217;\left( x \right)\) có bảng biến thiên như sau	</title>
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