If ahati+bhatj+chatk be a unit vector an...

If `ahati+bhatj+chatk` be a unit vector and z is a complex number such that `(1+a)z=b+ic, then (1-iz)/(1+z` (A) `(a+ib)/(1+z)` (B) `(1+c)/(a+ib)` (C) `(a+ib)(1+c)` (D) none of these

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