SUPER EASY MATHS (好趕ga ga ga)
2010-11-07 5:13 am
圖片參考：http://imgcld.yimg.com/8/n/HA06682457/o/701011060134113873409510.jpg
QUICK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
回答 (1)
2010-11-07 7:09 am
✔ 最佳答案
Note that 丨a - b丨represents the distance between 2 complex numbers a and b.So perimeter
= 丨- 4 - (2 + i)丨+丨- 4 - (2 - i)丨+丨2 + i - (2 - i)丨
= 丨-6 - i丨+丨-6 + i丨+丨2i丨
= root(6^2 + 1^2) + root(6^2 + 1^2) + root2^2
= 2 + 2root37
參考: me
收錄日期: 2021-04-23 20:45:09
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101106000051KK01341