15问答网 > 如何把这个复数化成极坐标形式？

如何把这个复数化成极坐标形式？

（j8)^1/3需要过程，谢谢。
2025-02-08 18:59:54
推荐回答（2个）
回答1：

三角形式。复数z＝a＋bi化为三角形式
z＝r（cosθ＋sinθi）
n√z＝n√r[cos(2kπ+θ)/n+isin(2kπ+θ)/n]（k＝1，2，3……）必须记住：z的n次方根是n个复数

参考资料：http://baike.baidu.com/view/10078.htm?fr=ala0_1_1

回答2：

模=
=7.07

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