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प्रश्न
Give reason to show that none of the numbers, given below, is a perfect square.
(i) 2162
(ii) 6843
(iii) 9637
(iv) 6598
एक पंक्ति में उत्तर
उत्तर
A number having 2,3,7 or 8 at the unit place is never a perfect square.
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