• 试题 ID 39697


已知向量组 $\alpha_1=(2,3,4,5)^T, \alpha_2=(3,4,5,6)^T, \alpha_3=(4,5,6,7)^T, \alpha_4=(5,6,7,8)^T$ ,则 $r\left(\alpha_1, \alpha_2, \alpha_3, \alpha_4\right)=$
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