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	Các bình luận về: Đề: Trong không gian với hệ trục tọa độ Oxyz, cho ba điểm \(A\left( {1;0; &#8211; 3} \right),B\left( {2;4; &#8211; 1} \right),C\left( {2; &#8211; 2;0} \right)\). Tọa độ trọng tâm của tam giác ABC là:	</title>
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