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	Các bình luận về: Cho \(x,y,z\) thoả mãn \(\left\{ \begin{array}{l}{x^2} + {y^2} + {z^2} = 2\\x + y + z = 2\end{array} \right.\) và hàm số\(f\left( x \right) = \left( {\frac{1}{3}{x^3} &#8211; 2{x^2} + x} \right)\ln 2\). Đặt \(g\left( x \right) = {2020^{f\left( x \right) + x &#8211; \left( {x &#8211; 1 + \sqrt 3 } \right)\ln \left( {x &#8211; 1 + \sqrt 3 } \right)}} &#8211; {2021^{\left( {x &#8211; 1 + \sqrt 3 } \right)\ln \left( {x &#8211; 1 + \sqrt 3 } \right) &#8211; f\left( x \right) &#8211; x}}\) . Số nghiệm thực của phương trình \(g&#8217;\left( x \right) = \,0\) là	</title>
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	<description>Học toán, Đề thi toán, Sách giáo khoa Toán, trắc nghiệm Toán online</description>
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