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Let a and b be distinct complex numbers on the unit circle. Find the maximum possible value of \(\left|\dfrac{a-b}{1-\overline{a}b}\right|\).

 Jan 18, 2020
 #1
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The maximum value is sqrt(3).

 Jan 18, 2020
 #2
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I'd like to see this one done too.  wink

 Jan 21, 2020

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