√(5+2√6)
=√((√2)^2+2(√2)(√3)+(√3)^2)
點解呀?
收錄日期: 2021-04-23 00:08:45
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070208000051KK02891