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Mathematics 8 Online
OpenStudy (anonymous):

I want to solve w^n = z^n for n when w,z are complex numbers.

OpenStudy (anonymous):

More specifically (1+i)^n = (1-i)^n

OpenStudy (anonymous):

n = 0? XD

OpenStudy (anonymous):

thats one solution actually, I would like the full answer ( you can check yourself that for n = 4 its also true ! )

OpenStudy (anonymous):

That's interesting haha

OpenStudy (anonymous):

Okay.. then the answer is all integer multiples of 4, right? :D

OpenStudy (anonymous):

\[\{n| \quad n = 4k ; \quad k \in \mathbb{Z} \}\] fancy :D

OpenStudy (anonymous):

Right, @giannisl9 ?

OpenStudy (anonymous):

I thought of that too, but you have to prove it somehow. The answer is probable what you wrote

OpenStudy (anonymous):

See what I thought of

OpenStudy (anonymous):

I already know how to prove it lol. I was just hoping you did too ^^

OpenStudy (anonymous):

Want to show me your train of thoughts ?!

OpenStudy (anonymous):

Sure. \[\Large 1+\color{blue}i = \sqrt{2}\left[\cos\left(\frac\pi4\right)+\color{blue}i\sin\left(\frac\pi4\right)\right]\] \[\Large 1-\color{blue}i=\sqrt2\left[\cos\left(-\frac\pi4\right)+\color{blue}i\sin\left(-\frac\pi4\right)\right]\]

OpenStudy (anonymous):

Ok got your way ! I was hoping for a more straight solution but thats good, representing the complex numbers this way

OpenStudy (anonymous):

Thank you

OpenStudy (anonymous):

So you can do it from here? :)

OpenStudy (anonymous):

Yes :)

OpenStudy (anonymous):

Awesome. I always knew you just needed a light nudge ^^`

OpenStudy (anonymous):

Thanks for the help !

OpenStudy (anonymous):

^.^

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