perplexus.info :: Just Math : Proof

Proof (Posted on 2002-05-29)

Prove that 3.999... = 4

See The Solution Submitted by Half-Mad

Rating: 3.6667 (9 votes)

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Proof

| Comment 1 of 45

Let T = 3.999999999....

10T = 39.9999999.....

9T = (10T - T) = 36

9T/9 = 36/9

T = 4

Posted by TomM on 2002-05-30 11:24:12

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