Answer:
[tex]3+3i[/tex]
Step-by-step explanation:
we know that
The formula to calculate the midpoint between two complex numbers (a+bi) and (c+di) points is equal to
[tex](\frac{a+c}{2})+(\frac{b+d}{2})i[/tex]
we have
(1+9i) and (5-3i)
substitute the given values
[tex](\frac{1+5}{2})+(\frac{9-3}{2})i[/tex]
[tex]3+3i[/tex]