Prove that 1= the solution set (-∞,∞)

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1= -1 by the fact that √-1= i and i squared= 1. So √-1 squared=1 and the two operations cancel. Meaning 1=-1. By using a physics theory, you can divide a sphere into equal size spheres both with the radius of the original. So if the radius is 1, then 1=2,3,4,5.....∞. Edit to the last post that the solution set is (-1,∞)