想問有無人識用MI prove呢個?
http://postimage.org/image/mmb29dj6h/
如死圖的話,可以按下面呢個document(page 2, question 2)
http://graphic-technologies.co.nz/doc/Thelengthofchordsinaunitcircle.pdf
收錄日期: 2021-04-23 23:26:17
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130311000051KK00127