2 =1+1
2 = 1 + (−1) * (−1)
2 = 1 + (e^πi)^2
2 = (e^πi)^2 +(e^πi)^2
2 = (eπi)^4
4 root (2)=e^πi
4 root (2) = −1
2 = −1^4
2 = −1