If `alpha =z/ bar z, then |alpha|` equals

If alpha=(z)/(bar(z)), then | alpha| equals

If alpha=(z)/(bar(z)), then | alpha|

Let (z-alpha)/(z+alpha) is purely imaginary and |z|=2, alpha in RR then alpha is equal to (A) 2 (B) 1 (C) sqrt2 (D) sqrt3

Let (z-alpha)/(z+alpha) is purely imaginary and |z|=2, alpha in RR then alpha is equal to (A) 2 (B) 1 (C) sqrt2 (D) sqrt3

If alpha,beta in R are such that 1-2i (here i^(2)=-1 ) is a root of z^(2)+alpha z+beta=0 , then (alpha-beta) is equal to:

Suppose a in R and z in C. "If" |z| = 2 and (z-alpha)/(z+alpha) is purely imaginary, then 1.25 |alpha| is equal to ____________.

If z=1+i tan alpha where pi lt alpha lt(3pi)/(2), then what is |z| equal to ?

If the equation of the perpendicular bisector of the line joining two camplex numbers P(z_(1)) and Q(z_(2)) are the complex plane is bar(alpha)z+alphabar(z)+r=0, then alpha and r are respectively,are

Let (z-alpha)/(z+alpha) is purely imaginary and |z|=2, alphaepsilonR then alpha is equal to (A) 2 (B) 1 (C) sqrt2 (D) sqrt3

Let (z-alpha)/(z+alpha) is purely imaginary and |z|=2, alphaepsilonR then alpha is equal to (A) 2 (B) 1 (C) sqrt2 (D) sqrt3