Hey Mattchance666,
Lets solve this equation together,
The question we are enquiring is : What is the value of i ^20+1?
To solve this equation: we have to use the Power Reduction Rule.
Where I^n=I{n mod 4}
In this case: I^20 = I^{5*4+0}=I^0
1 + 1 = 2
Hope this helps,
AnthrαX