Answer
$E=2+62i$
Work Step by Step
Plug in the given values to the formula $E=IZ$.
$E=(5+7i)(6+4i)$
Expand.
$E=30+20i+42i+28i^2$
Note $i^2=-1$ and combine like terms.
$E=(30-28)+(20+42)i$
$E=2+62i$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.