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JEEMAIN-2014
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Let $\;z \neq -i\;$ be any complex number such that $\;\large\frac{z-i}{z+i}\;$ is a purely imaginary number . Then $\;z+ \large\frac{1}{z}\;$ is :
(a) 0 \[\](b) any non - zero real number other than 1. \[\](c) any non-zero real number.\[\](d) a purely imaginary number
jeemain
mathematics
2014
set-06
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asked
May 20, 2014
by
yamini.v
edited
May 20, 2014
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