f(x)g(x)=1
f(x)=4-5X, g(x)= 1 over 2x(x+1)
即是
(4-5x) 1 over 2x(x+1)=1
4-5X=2x(x+1)
餘下的應該是 ??
收錄日期: 2021-04-23 20:45:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100512000051KK00022