what is the difference between perfect square and perfect square number? with example...
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EX: 225 is a perfect square because √225 is exactly 15 . ... Every numberis a square, but it is only a 'perfect square' if its square root is an integer.For example, 2 is a square, but it is not a 'perfect square' because itssquare root is the irrational number1.4142 ...
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any number x is perfect square if its square root is not a fraction.
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