$$x^2=x + x + \cdots + x$$ Where x is repeated on the right hand side x times.
Take the derivative of both sides: $$2x=1 + 1 + \cdots + 1$$ $$2x = x$$ $$2 = 1$$
Where did I go wrong?
2026-03-30 03:17:39.1774840659
Proof by derivative that 2=1
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