JEE Math Practice Question
The equation $$\arg \left( {{{z - 1} \over {z + 1}}} \right) = {\pi \over 4}$$ represents a circle with :
- A.centre at (0, $$-$$1) and radius $$\sqrt 2 $$
- B.centre at (0, 1) and radius $$\sqrt 2 $$
- C.centre (0, 0) and radius $$\sqrt 2 $$
- D.centre at (0, 1) and radius 2
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