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Which of the following statements is correct in the contradiction proof that \(\sqrt{2}\) is irrational?

Answer and explanation

Correct answer: मान लेते हैं कि \(\sqrt{2}=\frac{p}{q}\), जहाँ \(p\) और \(q\) सह-अभाज्य पूर्णांक हैं।

In a contradiction proof, assume \(\sqrt{2}=p/q\) in lowest terms, with coprime integers \(p,q\). From \(p^2=2q^2\), both \(p\) and then \(q\) are even, contradicting coprimality. Exam tip: always state that the fraction is in lowest terms.

Related tags

Number SystemsIrrational NumbersSquare Root 2Proof By ContradictionCoprime IntegersProof Of Irrationality Of Square Root 2 And Square Root 3MathematicsClass 9 Mcq

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