[" 7.If "x,y,b" are real,"z=x+iy" and "(...

[" 7.If "x,y,b" are real,"z=x+iy" and "(z-i)/(z-1)=ib," show that,"],[qquad (x-(1)/(2))^(2)+(y-(1)/(2))^(2)=(1)/(2)" .[council Sample Question '13] "]

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