Proof by Contradiction: Sqrt(2) is Irrational

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Hello there, today I will be going over a proof problem. Of everything that I’ve talked about so far, proof is single handedly the one that most people dislike.

In this video, I will prove that the square root of 2 is irrational using proof by contradiction. Proof by contradiction starts with us assuming that the statement is true and then finding a contradiction that makes the statement untrue. This problem is a classic example of proof by contradiction.

Problem of this video: √2 =/= rational

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Hope you enjoyed my video! Thanks for watching!

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  1. Caveman Chang | Algebra Teacher
  2. #math
  3. #proof
  4. #mathproof
  5. #proofs
  6. #proofbycontradiction
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