Answer:
i
Step-by-step explanation:
i = [tex]\sqrt{-1}[/tex]
i^2 = -1
i^3 = -i
i^4 = 1
(Make sure you know your exponent rules)
[tex]i^4^1 = i^4^0 * i = (i^1^0)^4 * i \\i^4 = 1 \\i^1^0 * i *1 \\i^1^0=1\\1*1*i=i[/tex]
