二元多项式f(x1,x2),如果将x1,x2对换后,有f(x1,x2=f(x2,x1)则称f(x1,x2)为二元对称多项式。下列是二元对称多项式的是( )...

作者: tihaiku 人气: - 评论: 0
问题 二元多项式f(x1,x2),如果将x1,x2对换后,有f(x1,x2=f(x2,x1)则称f(x1,x2)为二元对称多项式。下列是二元对称多项式的是( )。 A. B. C. D.
选项
答案 C
解析 由定义,互换石。,石:的位置,二元多项式不变,即正确选项为选项C。
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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
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