# 27.&nbsp; The real part of an analytic functio...

27.  The real part of an analytic function f(z) where z =.x + jy is given by e-y cos(x). The imaginary  part of  f(z) is

(A) eycos(x)

(B) e-ysin(x)

(C) -eysin(x)

(D) –e-ysin(x)

Hint: