Question

Match each description when z = 9 + 3i.
1.Real part of z
2.Imaginary part of z
3.Complex conjugate of z
4.3i - z
5.z - 9
6.9 - z

a.9
b.-3i
c.9 - 3i
d.-9
e.3i
f.3

Answer 1

\[z = a + ib\]
Real part: \(a\)
Imaginary Part: \(b\)
Complex Conjugate: \(a - ib\) [Sign of imaginary part changes]

The latter three are just simple computations you can perform like you do on arithmetic expressions. :)