The Euler's identity...
(1)
... combined with elementary properties of exponential conducts immediately to the result...
Kind regards
Hi, I'm currently trying to deduce de Moivre's formula,
.
This is what i have so far...
If , and
Then we have,
But I can't seem to figure out how they got from the second to the third step, It would be greatly appreciated if someone could please explain this.