An extract from GMAT club tests:
Must know for the GMAT: if x is a positive integer then root(x) is either a positive integer or an irrational number. (It cannot be some reduced fraction e.g. 73 or 12).
can't root(x) be negative?
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Must know for the GMAT: if x is a positive integer then root(x) is either a positive integer or an irrational number. (It cannot be some reduced fraction e.g. 73 or 12).
can't root(x) be negative?
