How do I find imaginary unit “i” and what is the pattern to figure it out?

A7X 4 Life: How do I find imaginary unit “i” and what is the pattern to figure it out?
Can someone explain to me how to find the imaginary unit “i” and the pattern as it goes up?
like the pattern as like i 23 or i 77 or i 45. how do i find what those equal?

Answers and Views:

Answer by Randy P
i is defined to be the square root of -1.

I don’t know what you mean about “finding it”, or what pattern you might be talking about. As what goes up?