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CBSE Class 10 Math 2023 All India Set-1 Solved Paper

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Question : 27 of 38
Marks: +1, -0
(A) Find the HCF\text{HCF} and LCM\text{LCM} of 26,65 and 117, using prime factorisation.
OR
(B) Prove that 2\sqrt{2} is an irrational number.
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