Question

show that the number are not perfect squares give reason
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Answer 1

Answer:

But where are the numbers ?

Answer 2

Answer:

222222 is not a perfect square. Since, the number of zeros is odd. ∴ 64000 is not a perfect square. Since, the ending digits is 2 (which is not one of 0, 1, 4, 5, 6 or 9).