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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 has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.