A classic proof by contradiction that the square root of 2 is an irrational number. We assume that the square root of 2 equals a rational number p/q in lowest terms, and deduce a contradiction.
Duration : 0:7:17
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Proof – The Square Root of 2 is Irrational
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not to steal your …
not to steal your thunder, but at my school they would dock points if you didn’t prove that if 2 divides p^2 then 2 divides p(contraposition would be easiest); unless it’s already clear that has been proven previously.
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