How do you explain this /sci ?

>>7847898
the square root of 1 is not only 1, but also -1. so there's no contradictory in the last equality

>>7847898
you forgot the +-

https://www.physicsforums.com/insights/things-can-go-wrong-complex-numbers/

>>7847898
>>7847906
>>7847907
>>7847909
DONT RESPOND TO THE FUCKING BAIT AND DONT FORGET TO FUCKING SAGE

>>7847898
You can bot fo from phase 3 to 4 while not in the Real Numbers field.

[math]\sqrt{-1}[/math] is not defined, that's the problem.

>>7847911
Even if it's bait, chances are that someone's going to follow the link and learn something new.

>>7847906
The typical "what are math" response.

>>7847919
no, and you know that.
don't forget to sage. This doesn't deserve to be on the first page.
thank you for your help cleaning this board.

>>7847915
This.
>Amerilards will disagree

>sqrt(-1)
-1*-1 = 1
-1*1 = -1 != sqrt(-1)
1*1 = 1 != sqrt(-1)

>sqrt(-1)*sqrt(-1)
>1 * 1/-1 * -1/1 * -1
It just can't be done. Fuck off.

sqrt((-1)*(-1)) != sqrt(-1)*sqrt(-1)

That's like in the first 4 weeks of calc1. With the whole math major superiority around here i'd expect this to be the answer.

something something illegal move.

sqrt(-1) times sqrt(-1) =/= sqrt((-1)(-1))