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We know that iota square = -1

=> iota = √(-1)

so now

iota square= iota * iota

=>iota square = √(-1) * √(-1)

and we know that √a * √b = √ab

=>iota square =√(-1)(-1) = 1

but we know that iota squre= -1

so how is it possible that iota square is both +1 and -1 ??

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