设A为矩阵，则齐次线性方程组仅有零解的充分条件是（ ）.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/9aab7bfb6aaf42ebaaa361dc51a866a8.png
举一反三
- 非齐次方程组有无穷多个解的充分必要条件是（ ）.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/6c8345e713f04830908942f9e3fadca1.png
- 设A为矩阵，且A的列向量组线性无关，则方程组AX=b（ ）.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/7ba0446196e5407abed2323678c8f65f.png
- 要使<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/c4b80714c3b14a559ae5bdcd09ef1fc6.png"/>是线性方程组AX=0的基础解系，则只要系数矩阵A=（ ）. A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/fb16cbefa5a746599e585bcf30dce878.png"/> B: ［2 1 1］ C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/df5d7a834bd44f44a519eaffffd47d39.png"/> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/5adacc7663b444d69f148ab2e7a11cf1.png"/>
- 设 是非齐次方程组 的解， 是对应齐次方程组 的解，则 必有一个解是( ).http://image.zhihuishu.com/zhs/onlineexam/ueditor/201812/208d944c7d6f4fcca80b73308064b83a.png
- 设A为矩阵，且A的行向量组的秩为3，则方程组AX=b（ ）.http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/bd3d4159077049b3893b52f2e7d10ec9.png