例如
(sin45度)x16
=11.3137085...
但ans就係8√2
咁點樣將11.3137085...變做8√2?
收錄日期: 2021-04-22 00:48:48
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20100715000051KK01255