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更新1:
SORRY what is 3√j in polar form? (1/2) (√3 + j) = 1<30 ? right?
COMPLEX NUMBER!
回答 (1)
2012-01-09 11:25 pm
✔ 最佳答案
In exponential notation, j can be expressed as:j = ejπ/2
Hence:
√j = (ejπ/2)1/2
= ejπ/4
= (cos π/4 + j sin π/4)
= (√2 / 2) (1 + j)
According to your given, I guess that you may want to ask 3√j:
3√j = (ejπ/2)1/3
= ejπ/6
= (cos π/6 + j sin π/6)
= (1/2) (√3 + j)
參考: 原創答案
收錄日期: 2021-04-26 22:23:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20120109000051KK00380