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Ex 5.3, 2 Without doing any calculation, find the numbers which are surely not perfect squares. (iv) 441A number is not a perfect square, if it ends with 2, 3, 7, 8 or if it has odd number of zeroes Since, 441 does not end with 2, 3, 7, 8 It is can be a perfect square.

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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.