Get expert advice and insights on any topic with IDNLearn.com. Discover in-depth answers to your questions from our community of experienced professionals.
ANSWER :
7 - 11i
EXPLANATION :
Note that we can only combine like terms.
[tex]\begin{gathered} (5-4i)+(2-7i) \\ =(5+2)+(-4i-7i) \\ =7-11i \end{gathered}[/tex]