The specific results are shown in the following figure:

Data expansion:

1. If the square of a number is equal to-1, let it be I 2 =-1. This number is called imaginary unit, which is represented by algebraic symbol I ... Then people organically combine imaginary and real numbers and write it in the form of a+bi. Where a and b are real numbers, when a equals 0, it is called pure imaginary number; When ab is not equal to 0, it is called a complex number; B is a real number when it is equal to 0. ?

2. My high power will continue the following cycle:

i^ 1 = i,i^2 = - 1,i^3 =-i,i^4 = 1