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TS EAMCET · Maths · Complex Number

The locus of \(z\) such that \(\left|\frac{z-i}{z+i}\right|=2\), where \(z=x+i y\), is

  1. A \(3 x^2+3 y^2+10 y+3=0\)
  2. B \(3 x^2-3 y^2-10 y-3=0\)
  3. C \(3 x^2+3 y^2+10 y-3=0\)
  4. D \(x^2+y^2-5 y+3=0\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(3 x^2+3 y^2+10 y+3=0\)

Step-by-step Solution

Detailed explanation

\(\left|\frac{z-i}{z+i}\right|=2\)…