four points z1, z2, z3, z4, in complex plane such that |z1| < 1, |z3|

1.	four points z1, z2, z3, z4, in complex plane such that \|z1\| < 1, \|z3\| = 1, \|z2\|
Answer» four points z1, z2, z3, z4, in complex plane such that \|z1\| < 1, \|z3\| = 1, \|z2\| <= 1 and z2 =z3(z1-z4)/(z1'z4 -1) then \|z4\| can be (1) 1/2 (2) 2/3 (3) 3/2 (4) 5/4

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