设B是3阶非零矩阵,已知B的每一列都是方程组的解,则t等于( )。A. 0 B. 2 C. -1 D. 1

作者: tihaiku 人气: - 评论: 0
问题 设B是3阶非零矩阵,已知B的每一列都是方程组的解,则t等于( )。
选项 A. 0 B. 2 C. -1 D. 1
答案 D
解析 提示:由条件知齐次方程组有非零解,故系数行列式等于零,,得t = 1,故选D。

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