- #1
- 2,386
- 4
Complex Number, again... :(
This I'll give you the entire question and answer.
10. Solve:
[tex]z^4-2z^2+4=0[/tex]
That's all I got.
Answer:
[tex]+-1/2(\sqrt{6}+-\sqrt{2i}) (four combinations of signs).[/tex]
That is all.
I tried factoring, but I can't come up with anything. I also tried bisecting, but that is useless.
Knowing that the solution has complex numbers, I have no clue where they got this from.
This I'll give you the entire question and answer.
10. Solve:
[tex]z^4-2z^2+4=0[/tex]
That's all I got.
Answer:
[tex]+-1/2(\sqrt{6}+-\sqrt{2i}) (four combinations of signs).[/tex]
That is all.
I tried factoring, but I can't come up with anything. I also tried bisecting, but that is useless.
Knowing that the solution has complex numbers, I have no clue where they got this from.