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1. The set S={x €Q : x^3 <= 7} where Q = the rationals has supremum = cube root x

But why does it have no maximum?
I though the maximum was also cube root x?
2. tbh I have no clue, so I'm just going to use the easy method to help you

Zacken
3. Which board and level is this?
4. (Original post by e^x)
The set S={x €Q : x^3 <= 7} where Q = the rationals has supremum = cube root x

But why does it have no maximum?
I though the maximum was also cube root x?
What you are saying makes no sense. The supremum is and this is obviously not in so cannot be part of S. Therefore there is no maximum.

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