- #1
EnlightenedOne
- 48
- 0
I see many people saying that the imaginary number squared is -1, like so:
i = sqrt(-1)
i2 = sqrt(-1)*sqrt(-1) = (sqrt(-1))2 = -1
But, what about this:
i2 = sqrt(-1)*sqrt(-1) = sqrt(-1*-1) = sqrt(1) = 1
Can someone please explain to me why i2 = -1 if the above counter example is correct? If not, can someone explain why my counter example is incorrect? It seems like both are correct, but how can that be so?
Thank you
i = sqrt(-1)
i2 = sqrt(-1)*sqrt(-1) = (sqrt(-1))2 = -1
But, what about this:
i2 = sqrt(-1)*sqrt(-1) = sqrt(-1*-1) = sqrt(1) = 1
Can someone please explain to me why i2 = -1 if the above counter example is correct? If not, can someone explain why my counter example is incorrect? It seems like both are correct, but how can that be so?
Thank you