Proof that 0.999… equals 1 – Wikipedia, the free encyclopedia

The recurring decimal 0.999… equals 1, not approximately but exactly. More precisely, the standard real number represented by 0.999… where the 9s repeat forever is exactly equal to the standard real number 1.

Via Reddit. A couple of months ago there was some jackass claiming that this wasn’t true. Wikipedia has something like 10 proofs. So there!


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