Their are two important data points to calculate, based on complex numbers. They are the Modulus and Conjugate.
Modulus of a complex number:
The modulus of a complex number z=a+ib is denoted by |z| and is defined as 
.
Example:
Find the modulus of z =4 – 3i.
Solution:
Properties of conjugate:
(i) |z|=0 z=0
(ii) |-z|=|z|
(iii) |z1 * z2|= |z1| * |z2|
Conjugate of a complex number:
The conjugate of a complex number z=a+ib is denoted by 
and is defined as 
.
Properties of conjugate:
SchoolTutoring Academy is the premier educational services company for K-12 and college students. We offer tutoring programs for students in K-12, AP classes, and college. To learn more about how we help parents and students in Orange visit: Tutoring in Orange.