i was taught that i(adsbygoogle = window.adsbygoogle || []).push({}); ^{2}= -1

because ((-1)^{1/2})^{2}=(-1)^{2/2}=(-1)^{1}=-1

but isnt it mathematically correct to say

[tex]\sqrt{-1}[/tex] * [tex]\sqrt{-1}[/tex] = [tex]\sqrt{-1*-1}[/tex] = [tex]\sqrt{1}[/tex] = 1

what the heck!!

Is there some bleedingly obvious thing im missing.

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# I^2 = -1 or +1

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