JEE Main & Advanced
Mathematics
Complex Numbers and Quadratic Equations
Question Bank
Numerical Value Type Questions - Complex Numbers Quadratic Equations
question_answer
All the points in the set \[S=\left\{ \frac{\alpha +i}{\alpha -i}:\alpha \in R \right\}\,\,\,(i=\sqrt{-1})\] lie on a circle, then it's radius is equal to