Let w(Im w != 0) be a complex number. T...

Let `w(Im w != 0)` be a complex number. Then the set of all complex numbers z satisfying the equal `w-barw z = k(1-z)` , for some real number k, is :

`{z: |z|=1}`

`{z: z =barz}`

`{z : z ne 1}`

`{z : |z|=1, z ne 1}`

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