【线性代数】一道关于矩阵秩的选择题已知Q=[1,2,3;2,4,t;3,6,9],(【注】1,2,3;表示是第一行的元素是1,2,3),P为3阶非零矩阵,且满足PQ=0,则()A.t=6时P的秩必为1B.t=6时P的秩必为2C.t不等于6时P
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![【线性代数】一道关于矩阵秩的选择题已知Q=[1,2,3;2,4,t;3,6,9],(【注】1,2,3;表示是第一行的元素是1,2,3),P为3阶非零矩阵,且满足PQ=0,则()A.t=6时P的秩必为1B.t=6时P的秩必为2C.t不等于6时P](/uploads/image/z/10296839-47-9.jpg?t=%E3%80%90%E7%BA%BF%E6%80%A7%E4%BB%A3%E6%95%B0%E3%80%91%E4%B8%80%E9%81%93%E5%85%B3%E4%BA%8E%E7%9F%A9%E9%98%B5%E7%A7%A9%E7%9A%84%E9%80%89%E6%8B%A9%E9%A2%98%E5%B7%B2%E7%9F%A5Q%3D%5B1%2C2%2C3%EF%BC%9B2%2C4%2Ct%EF%BC%9B3%2C6%2C9%5D%2C%EF%BC%88%E3%80%90%E6%B3%A8%E3%80%911%2C2%2C3%EF%BC%9B%E8%A1%A8%E7%A4%BA%E6%98%AF%E7%AC%AC%E4%B8%80%E8%A1%8C%E7%9A%84%E5%85%83%E7%B4%A0%E6%98%AF1%2C2%2C3%EF%BC%89%2CP%E4%B8%BA3%E9%98%B6%E9%9D%9E%E9%9B%B6%E7%9F%A9%E9%98%B5%2C%E4%B8%94%E6%BB%A1%E8%B6%B3PQ%EF%BC%9D0%2C%E5%88%99%EF%BC%88%EF%BC%89A.t%3D6%E6%97%B6P%E7%9A%84%E7%A7%A9%E5%BF%85%E4%B8%BA1B.t%3D6%E6%97%B6P%E7%9A%84%E7%A7%A9%E5%BF%85%E4%B8%BA2C.t%E4%B8%8D%E7%AD%89%E4%BA%8E6%E6%97%B6P)
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