数据库 MySQL 报错 could not execute batch 报错日志如下所示: 16:59:48 Thread-45 ERROR [standard] could not execute batchcom.fr.third.org.hibernate.exception.GenericJDBCException: could not execute batch Caused b
证明 ∠ A P C = 2 ∠ A B C ∠APC=2∠ABC ∠APC=2∠ABC ∴ ∴ ∴ 三角形内角和为180 $∵ \begin{cases} ∠ABP+∠BAP+∠APB=180 \∠ABC+∠BAC+∠ACB=180 \∠PAC+∠PCA+∠APC=180 \end{cases} $ ∴ A P = B P = P C = r ∴AP=BP=PC=r ∴AP=BP=PC