If z = x+iy and w = 1 - i2 / z-i Show that mod w = 1 implies z - Maths - Complex Numbers and Quadratic Equations

Question

If z = x+iy and w = 1 - i2 / z-i
Show that mod w = 1 implies z is purely real

Shubham Chourasiya · Accepted Answer

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If z = x+iy and w = 1 - i2 / z-i Show that mod w = 1 implies z is purely real.