JEE Math Practice Question
If z and w are two complex numbers such that |zw| = 1 and arg(z) – arg(w) = $${\pi \over 2}$$ , then :
- A.$$z\overline w = {{1 - i} \over {\sqrt 2 }}$$
- B.$$\overline z w = i$$
- C.$$z\overline w = {{ - 1 + i} \over {\sqrt 2 }}$$
- D.$$\overline z w = -i$$
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