Ex 5.1, 3 The squares of which of the following would be odd numbers? (i) 431 We know that The square of even number is even & The square of odd number is odd. Since 431 is an odd number ∴ Its square will also be an odd number.

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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 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.