i is considered an imaginary number, also described as -1. so -1^37 would be equal to -37 It can also be i, since it is an imaginary number, but the first answer is accurate because i=the equation has the exponent ^37
Reason: i^2=-1, i^4=1. Every 4 i values become 1. I^37 is basically i^4*i^4*i^4*i^4*i^4*i^4*i^4*i^4*i^4*i. All of the i^4 values become 1, so what is left is i.
