MCQ
જો $\begin{vmatrix} \mathbf{\frac{i+z}{i-z}} \end{vmatrix}=1$ તો $z$ એ ........... પર આવેલ છે.
- Aવર્તુળ $x^2+y^2=1$
- B
- C$X-$ અક્ષ
- D$Y-$ અક્ષ
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