let z=(x-6)+(2x-8)i be a complex number,where x is a real number
Is there a real number x such that z is a purely imaginary number?Explain your answe本人英文不好,請用中文解釋
help me plz?
2015-09-13 7:50 am
回答 (1)
2015-09-13 8:09 am
✔ 最佳答案
要成為虛部表複數之實數等於0只保留虛部z=(x-6)+(2x-8)i=0+(2*6-8)i=4i
所以x=6
收錄日期: 2021-04-23 23:45:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150912235053AAAZKjp