Question 1073007: Using Euler's formula of ea + bi = ea(cos b + i sin b), derive the arisen equation of eπi + 1 = 0 Answer by MaxWong(38) (Show Source):
You can put this solution on YOUR website! e^(a+bi) = e^a(cos b + i sin b)
Therefore e^(pi*i) = cos pi + i sin pi = -1 + 0i = -1.
e^πi + 1 = 0
e^πi = -1
The results match :D