好心人Pls. help help幫幫忙牙?因為在下只是小學級(可憐不能用HTML功能), 麻煩請看連結Tks.
https://picasaweb.google.com/108632853947979418297/Determinants3?authkey=Gv1sRgCMWavNOl7_TG_QE
M2 Determinants q3
2013-01-22 3:03 pm
回答 (1)
2013-01-23 3:56 am
✔ 最佳答案
area = AB X AC /2= det( i j k)
(x2-x1 y2-y1 0) 除2
(x3-x1 y3-y1 0)
收錄日期: 2021-04-16 15:30:51
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130122000051KK00045