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Mathematics 7 Online
OpenStudy (anonymous):

illustrates on the komplex numberplane the points z for which I z-2i I = I z-4i I

OpenStudy (experimentx):

|z - 2i| = k represents a circle of radius k at 2i | z-4i| = k 4i

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

I dont really understand how thats the answer?

OpenStudy (experimentx):

I don't think it has a unique solution.

OpenStudy (anonymous):

thanks! = )

OpenStudy (experimentx):

z = 3i ... that is one of your solution.

OpenStudy (anonymous):

why is that a solution?

OpenStudy (experimentx):

hold on ... looks like i forgot they have same radius

OpenStudy (experimentx):

|dw:1346577593203:dw|

OpenStudy (experimentx):

the solution will be of the form x+3i <---

OpenStudy (anonymous):

becouse thats in the middle of both points`?

OpenStudy (experimentx):

maybe so ... try proving it geometrically ... I'm kinda tired.

OpenStudy (anonymous):

ok thanks so much! =)

OpenStudy (experimentx):

yw

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