The imaginary part of cosh `(alpha+ibeta)` is

The imaginary part of cosh(alpha+i beta) is

The imaginary part of (-1)/5+i/5 is :

The real and imaginary parts of log (1 + i) =

The imaginary part of z = (2+i)/(3-i) is

The real and imaginary parts of log(1+i)=

If the imaginary part of the complex number (z-1)(cos alpha-i sin alpha)+(z-1)^(-1)(cos alpha+i sin alpha) is zero,then which of the following options are correct? a) |z|=1 b) |z-1|=1 c) arg (z)=alpha d) arg (z-1)=alpha

The imaginary part of tan^(-1)((5i)/(3)) is