Why imaginary numbers may not be imaginary | Quantum Mechanics

What are imaginary numbers?
Why are imaginary numbers necessary in quantum mechanics?

[thomasolson]

x=(-b ± sqrt(b^2-4*a*c))/(2a)
I would also point out that it's in sec^2(θ)-tan^2(θ)=1, it looks different though.

(±sqrt(x^2+y^2)/x)^2-(y/x)^2 = 1
= 1

= a/a
One of the 'a's in the square is a -c
= -c/a
= -c/a

You can get to this by dividing by (mc^2)^2 or by the scalar squared (if it's not a unit vector).
sec^2(θ)-tan^2(θ)=1 is the form angular momentum represents the best. I could have made c much larger than a, but I would have had to divide a by an equal amount. The distance ends up being sqart(-c/a). Since -c/a is not squared. Which makes it imaginary. Probably cause I did math wrong again.