about the subset S⊆Q such that x∈S ⇔18x-x^3≧0

Q is set of rational number.

a)how to show S have a maximum or not?

b)how to show S have a minimum or not?

c)how to show S have supremum or not?

d) how to show S have infimum or not?

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- Mar 22nd 2011, 08:00 AMnyammosubset, maximum and minimum, supremum and infimum
about the subset S⊆Q such that x∈S ⇔18x-x^3≧0

Q is set of rational number.

a)how to show S have a maximum or not?

b)how to show S have a minimum or not?

c)how to show S have supremum or not?

d) how to show S have infimum or not? - Mar 22nd 2011, 09:43 AMFernandoRevilla