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Ex 6.3, 2 - Without doing any calculation, find the numbers which are

 


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Ex 6.3, 2 Without doing any calculation, find the numbers which are surely not perfect squares. (i) 153A number is not a perfect square, if it ends with 2, 3, 7, 8 or if it has odd number of zeroes Since, 153 ends with 3 153 is not a perfect square.

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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.