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@bbotelho3
Last active August 29, 2015 14:05
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http://problemotd.com/problem/2-equals-1/
In the fifth step, both sides are divided by (a - b).
Since a = b, (a - b) is equal to 0, resulting in a 0/0 division.
0/0 is indetermined, therefore the fifth step is not valid.
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