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	Các bình luận về: Đề: Trong không gian với hệ tọa độ Oxyz, cho hai đường thẳng \({d_1}:\frac{{x &#8211; 1}}{1} = \frac{{y &#8211; 2}}{{ &#8211; 2}} = \frac{{z &#8211; 3}}{1}\) và \({d_2}:\left\{ {\begin{array}{*{20}{c}}{x = 1 + kt}\\{y = t}\\{z =  &#8211; 1 + 2t}\end{array}} \right..\) Tìm giá trị của k để \({d_1}\) cắt \({d_2}.\)	</title>
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