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If z and w are two complex number such t...

If `z and w` are two complex number such that `|zw|=1 and arg (z) – arg (w) = pi/2,` then show that `overline zw = -i.`

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Verified by Experts

Let

`z=r_!e^(itheta) and w=r_@e^iphi`

`rArr overlinez = r_1e^(itheta)`

...
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