## Puzzle Archive |
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This, of course, is an old chestnut but can you remember how to prove that 1 = 2 ?
Scroll down the page for the answer.
OK, here goes: let so ab - a
^{2} = b ^{2} - a ^{2}so a(b - a) = (b + a)(b - a)
so a = b + a
so a = 2aso if Visit the puzzle archive for more puzzles and their solutions. |
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