- #1
birulami
- 155
- 0
What are the values of [itex]z[/itex] for which
[tex]z^\alpha-1=0[/tex]
when [itex]z[/itex] and [itex]\alpha[/itex] are complex? Trivially,
[tex]r\cdot e^{k 2\pi i/\beta}[/tex]
is a solution for every integer value [itex]k[/itex] if [itex]r=1[/itex] and [itex]\beta=\alpha[/itex].
Can every solution be written in this form? Again this is trivial for real [itex]\alpha[/itex], but how about [itex]\alpha[/itex] with a non-zero imaginary part? What are the values of [itex]r[/itex] and [itex]\beta[/itex] then?
Thanks,
Harald.
[tex]z^\alpha-1=0[/tex]
when [itex]z[/itex] and [itex]\alpha[/itex] are complex? Trivially,
[tex]r\cdot e^{k 2\pi i/\beta}[/tex]
is a solution for every integer value [itex]k[/itex] if [itex]r=1[/itex] and [itex]\beta=\alpha[/itex].
Can every solution be written in this form? Again this is trivial for real [itex]\alpha[/itex], but how about [itex]\alpha[/itex] with a non-zero imaginary part? What are the values of [itex]r[/itex] and [itex]\beta[/itex] then?
Thanks,
Harald.