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1.
We see that each member in the given set has the numerator one less than the denominator.
Also, the numerator begin from 1 and do not exceed 6.
Hence, in the set-builder form the given set is:
Alternatively, you can also say that the denominator begin from 2 and do not exceed 7. I that case, the set builder form for this set can be written as:
2.
Clearly, x is a set of squares of all natural numbers from 1 to 10. Hence, the set builder form can be written as:
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