數學挑戰題iii
2009-12-24 9:19 pm
回答 (1)
2009-12-24 11:18 pm
✔ 最佳答案
U=f(T)/[(T-1)f(T-3)]=[(T-1)f(T-1)]/[(T-1)f(T-3)]
=f(T-1)/f(T-3)
=(T-2)f(T-2)/f(T-3)
=(T-2)(T-3)f(T-3)/f(T-3)
=(T-2)(T-3)
收錄日期: 2021-04-22 00:34:19
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091224000051KK00599