Revision history of "Square of i"

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  • (cur | prev) 03:34, 8 December 2016Tom (talk | contribs). . (299 bytes) (+299). . (Created page with "==Theorem== The following formula holds: $$i^2=-1,$$ where $i$ denotes the imaginary number. ==Proof== From the definition of $i$, $$i=\sqrt{-1}.$$ Squaring both sides sh...")