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Chapter 1 Class 10 Real Numbers
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Question 5 If a and b are two coprime numbers, then a³ and b³ are (a) Coprime (b) Not coprime (c) Even (d) OddSince a and b are coprime a3 and b3 will also be co−prime Example: 2 and 3 are coprime And, 23 = 8, and 33 = 27 ∴ 8 and 27 are also coprime So, the correct answer is (a)

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.