设A是m×n矩阵，如果m

作者: tihaiku 人气: - 评论: 0

问题设A是m×n矩阵，如果m

选项 A.Ax=b必有无穷多解 B.Ax=b必有唯一解 C.Ax=0必有非零解 D.Ax=0必有唯一解

答案 C

解析根据条件可知，方程组中方程的个数一定小于未知数的个数，所以Ax=0必有非零解。由

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消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.

文件: /twcms/kongphp/cache/cache_redis.class.php

位置: 第 85 行

<?php echo 'KongPHP, Road to Jane.'; ?>

设A是m×n矩阵，如果m

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