Find the number of non- perfect squares between 1202 and 1302?
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A non-perfect square is a number such that there is no rational number p/q such that (p/q)^2 = n (where n is a perfect square).
Step-by-step explanation:
If a number is to be a perfect square then its digit sum must be 1, 4, 7 or 9. If its digit sum is not one of these numbers then it definitely is not a perfect square. However if its digit sum is one of these numbers it may be but is not necessarily a perfect square..
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