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SUPER EASY MATHS (V.趕)
2010-11-01 1:55 am
回答 (2)
2010-11-01 2:14 am
✔ 最佳答案
w^2 = (1 + 2i)(1 + 2i)= - 3 + 4i
So w^2 - 1 = -4 + 4i
丨w^2 - 1丨= sqrt(4^2 + 4^2)
= 4sqrt2
參考: me
2010-11-01 2:16 am
it's.......... a go..od ans......
收錄日期: 2021-04-23 21:05:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101031000051KK01027