Question 73552
Here is a list of the values of i:
{{{i=i<br>i^2=-1<br>i^3=-i<br>i^4=1}}}
After simplifying the squared expression using the FOIL method, we get: {{{1-2i+i^2}}}
Substitute -1 for {{{i^2}}} and the answer is {{{-2i}}}