Q. 2 A4.1( 19 Votes )

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Given, a number 121 and need to find out whether it is perfect square or not.

Now, we have the perfect square = , [T1] where m and n are integers

121 is a perfect square as it can be expressed as 11 × 11 form the product of two equal integer.

121 = 11 × [T2] 11

Hence, 121 is a perfect square.

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