[" Let "z" be a complex number having the argument "theta,0

Let z be a complex number having argument greater than 0 but less than 'pi/2' and satisfying equation (z-5i)(barz+5i)=25 then cot theta-10/z is equal to

Let z=i^(3)(1+i) be a complex number. What is its argument ?

If z is a complex number of unit modulus and argument theta , then arg((1+z)/(1+bar(z))) equals to

If z is a complex number of unit modulus and argument theta , then arg((1+z)/(1+bar(z))) equals to

If z is a complex number of unit modulus and argument theta , then arg((1+z)/(1+barz)) equals

If z is a complex number of unit modulus and argument theta , then the real part of (z(1-barz))/(barz(1+z)) , is

If z is a complex number of unit modulus and argument theta , then the real part of (z(1-barz))/(barz(1+z)) , is