Q.1 Can we say whether the following numbers are perfect squares? How do we know?

(i) \; 1057

 

Answers (1)

We know that numbers which end with 0, 1, 4, 5, 6 or 9 at units place may be a perfect square number and all other number are not perfect square number.

Since the given number has 7 at units place hence this number is not a perfect square.

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