Which of the following cannot be the unit digit of a perfect square number 1. 6 2. 9
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Answered by
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It's 2 because no perfect square ends with it
Answered by
15
Perfect squares have any one of 1,4,5,6,9 in their unit's place, find the one which doesn't end with these.
So answer will be number ending with 2.
So answer will be number ending with 2.
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