Find the locus in the complex plane of points that satisfy

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SUMMARY

The locus in the complex plane that satisfies the equation z - c = p(1 + it)/(1 - it) is indeed a circle centered at the complex number c. The radius of this circle is determined by the real parameter p, which scales the unit circle defined by the expression (1 + it)/(1 - it). Proper notation is crucial; parentheses must be used to avoid ambiguity in the equation, ensuring clarity in mathematical expressions.

PREREQUISITES
  • Understanding of complex numbers and their representation in the complex plane
  • Familiarity with the concept of loci in geometry
  • Knowledge of the properties of circles in the complex plane
  • Ability to manipulate complex equations and expressions
NEXT STEPS
  • Study the properties of circles in the complex plane
  • Learn about complex transformations and their geometric interpretations
  • Explore the implications of real parameters in complex equations
  • Investigate the use of parentheses in mathematical notation for clarity
USEFUL FOR

Mathematics students, educators, and anyone interested in complex analysis or geometric interpretations of complex equations will benefit from this discussion.

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Homework Statement



find the locus in the complex plane that satisfies

z -c = p (1+it/1-it)

c is complex, p is real t is a real parameter

Homework Equations





The Attempt at a Solution



there is no answer in the textbook so i wanted to check my answer. I got a unit circle which is offset by c, so that c is in the centre of the circle.

please confirm!
Thanks :)
 
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are you sure it is a unit circle? remember 'p' is a real number there. Also, you should really put parentheses where they are needed. The equation should be written z-c = p (1+it)/(1-it) because this is unambiguous, however z-c = p(1+it/1-it) is very ambiguous and could mean a lot of different things.
 

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