13 December 2008

π really does equal 3

Okay, not really. But here's a fake proof that π = 3, which I hadn't seen before.


misha said...

Here is a proof that 1=0 from "Mathematical Mosaic" by Ravi Vakil.
Take integral of dx/x and integrate by parts, getting x/x - integral of xd(1/x)
= 1 + integral of dx/x, so 1=0.

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