Finding the Locus of a Complex Number with Given Conditions

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Homework Help Overview

The problem involves a complex number \( z \) that satisfies the equation \( |z|=2 \). Participants are tasked with finding the locus \( W \) defined by the transformation \( w=(z+2)/(z-1} \).

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants discuss the representation of \( z \) in polar form and the implications of using a complex conjugate to simplify the expression for \( w \). There are requests for further clarification on the steps involved in applying the hint provided.

Discussion Status

The discussion is ongoing, with participants seeking to understand the application of hints and the transformation process. There is an emphasis on the need for participants to demonstrate their attempts rather than receive direct solutions.

Contextual Notes

Participants are reminded of the forum guidelines that discourage providing complete solutions and encourage individual effort in problem-solving.

some1
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can some 1 help me tho solve this
a complex number, z satisfied the equation |z|=2
draw the locus W which satisfied the equation w=(z+2)/(z-1)
thx
 
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Welcome to PF!

Hi some1! Welcome to PF! :smile:

Hint: put z = re, and then use a complex conjugate to get rid of the complex denominator. :wink:
 
still not really understand...can show the step??
thx
 
some1 said:
still not really understand...can show the step??
thx

No, that's not what we do here. When you signed up for your account, you were instructed to read a set of guidelines. In those guidelines, it is made clear that we do not do your homework for you, you must make an effort and show your attempts. TinyTim gave you a good hint, how far do you get when you try to apply his hint? (Post what you've got!)
 
Yes, you must show us your attempt …

if w=(z+2)/(z-1), and z = re, then what is w in terms of r and θ ? :smile:
 

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