The set of all \alpha∊R, for which w=\frac{1+(1-8\alpha)z}{1-z} is a purely imaginary number, for all z∊C satisfying |z|=1 and Re Z\neq1, is: [Main 15 April 2018 S1]

JEE Main 15 Apr 2018 Shift 1 Solved Paper

Section: Mathematics

Question : 63 of 90

Marks: +1, -0

The set of all α∊R, for which w=

1+(1−8α)z

1−z

is a purely imaginary number, for all z∊C satisfying |z|=1 and Re Z≠1, is:

[Main 15 April 2018 S1]

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