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What could be the possible ‘one’s’ digits of the square root of each of the following numbers? 9801

 What could be the possible ‘one’s’ digits of the square root of each of the following numbers?
9801 

Grade:12

1 Answers

Anand Kumar Pandey
askIITians Faculty 5818 Points
3 months ago
Dear Student

We know that the unit’s digit of the square of a number having digit as unit’splace 1 is 1 and also 9 is 1[92=81 whose unit place is 1].
∴ Unit’s digit of the square root of number 9801 is equal to 1 or 9.

Thanks

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