A non-zero complex number ` z` is said to be purely imaginary if

A non-zero complex number z is uniquely determined if

The complex number z is purely imaginary,if

Consider the equation 10 z^2-3i z-k=0,w h e r ez is a following complex variable and i^2=-1. Which of the following statements ils true? For real complex numbers k , both roots are purely imaginary. For all complex numbers k , neither both roots is real. For all purely imaginary numbers k , both roots are real and irrational. For real negative numbers k , both roots are purely imaginary.

Let z!=i be any complex number such that (z-i)/(z+i) is a purely imaginary number.Then z+(1)/(z) is

Identify the incorrect statement.(a) no non- zero complex number z satisfies the equation,bar(z)=-4z( b )z=z implies that z is purely real

If the number (z-1)/(z+1) is purely imaginary, then

If z is a complex number such that (z-i)/(z-1) is purely imaginary, then the minimum value of |z-(3 + 3i)| is :