来自田坤的问题
【化简:2a-b-c/(a-b)(a-c)+2b-a-c/(b-c)(b-a)+2c-a-b/(c-b)(c-a)】
化简:2a-b-c/(a-b)(a-c)+2b-a-c/(b-c)(b-a)+2c-a-b/(c-b)(c-a)
1回答
2020-09-14 00:11
【化简:2a-b-c/(a-b)(a-c)+2b-a-c/(b-c)(b-a)+2c-a-b/(c-b)(c-a)】
化简:2a-b-c/(a-b)(a-c)+2b-a-c/(b-c)(b-a)+2c-a-b/(c-b)(c-a)
(2a-b-c)/[(a-b)(a-c)]+(2b-a-c)/[(b-c)(b-a)]+(2c-a-b)/[(c-b)(c-a)]=[(a-b)+(a-c)]/[(a-b)(a-c)]+[(b-a)+(b-c)]/[(b-c)(b-a)]+[(c-a)+(c-b)]/[(c-b)(c-a)]=[(1/(a-b))+(1/(a-c))]+[(1/(b-c))+(1/(b-a))]+[(1...