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(1) or (2) is correct ? If wrong, what is the answer?
F4 Maths
2013-04-20 7:46 pm
回答 (1)
2013-04-20 8:02 pm
✔ 最佳答案
(1) is correct~(2): 5i-5 / -10 = -5i/10 - (5/-10) 而你卻將 -10變成10 ~ 又沒有轉前面符號
最好方法就係整走負號先
(5i-5)/(-10)
=(5-5i)/10
=(1-i)/2
=1/2 - 1/2 i
收錄日期: 2021-04-13 19:25:25
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130420000051KK00100