Answer
It does not make sense.
Work Step by Step
It does not make sense. $5$ is a constant, but the imaginary unit, $i$, is defined as the square root of negative one. It is not a variable.
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.