If the real part of (z+1)/(z-1) is zero, find the locus of points representing z in the complex plane.

The answer in the book is x^2 + y^2 = 1 ie. a circle, but i dont know how to solve it

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- Feb 9th 2011, 05:22 AMkumquatComplex numbers and loci
If the real part of (z+1)/(z-1) is zero, find the locus of points representing z in the complex plane.

The answer in the book is x^2 + y^2 = 1 ie. a circle, but i dont know how to solve it - Feb 9th 2011, 05:38 AMProve It

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You know that the real part is 0, so

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