1)
let 0 < @ < pi/2,express the following complex number in exponential form
a)1 - sin@ + icos@
b)1 - sin@ - icos@
2)
for -cos@ - isin@
= -(cos@ + isin@)
but the modulus = -1 < 0
can it be?
complex number
2007-07-04 6:04 am
回答 (1)
2007-07-04 6:10 pm
收錄日期: 2021-04-12 21:46:40
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070703000051KK04667