• 2022-06-03
    设向量组(Ⅰ):α1=(a11,a12,a13),α2=(a21,a22,a23),α3=(a31,a32,a33);向量组(Ⅱ):β1=(a11,a12,a13,a14),β2=(a21,a22,a23,a24),β3=(a31,a32,a33,a34),则正确的命题是()
    A: (Ⅰ)相关(Ⅱ)相关.
    B: (Ⅰ)无关(Ⅱ)无关.
    C: (Ⅱ)无关(Ⅰ)无关.
    D: (Ⅱ)相关(Ⅰ)无关.