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/sci/ - Science & Math

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>> No.11448290 [View]
File: 917 KB, 900x1180, __flandre_scarlet_touhou_drawn_by_ainy77__8eca7764517156d86eef1f2d7ae98249.jpg [View same] [iqdb] [saucenao] [google]
11448290

>>11448229
Really?
And here I was thinking that it was a perfectly simple and formal application of [math](a^b)^c=a^{bc}[/math], a basic theorem about powers, instead of a heuristic, extremely informal grouping of the [math]-1[/math]s into pairs that should cancel out, whose formal proof would probably look something like [math](-1)^n = \Pi _{i=1} ^n (-1) = [ \Pi _{i ~ odd, ~ i \leq n}(-1) ][ \Pi_{i ~ even, ~ i \leq n} (-1) ] = [ \Pi_{i ~ odd, ~ i \leq n} (-1)][ \Pi_{i+1, ~ i ~ odd, ~ i \leq n} (-1) ]= \Pi_{i ~ odd, i \leq n} (-1)^2 = \Pi_{i ~ odd, ~ i \leq n} 1 = 1[/math]
>>11448267
Same tbqh.
>>11448263
>discord
OH NO NO NO NO

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