Wednesday, July 21, 2010
4=5
The other day, someone in our creative services department tried convincing me that 4=5. He offered a convincing proof, which is displayed below. But what is wrong with it?
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Interesting. This can be boiled down to the following, which shows that 0.5 = -0.5. The problem is that on one side you pick the positive root, and on the other you pick the negative.
ReplyDelete0.25 = 0.25
(.5)^2 = (-0.5)^2
0.5 = -0.5
This is very interesting, I've seen some other weird things like this on:
ReplyDeletehttp://www.justriddlesandmore.com