What is the sup and what is the inf of

A={-4+(3/n^2) with n as natural numbers)

I put that sup=l.u.b=-1 (i.e. -4+3) and inf=g.l.b=-4 (-4+0)

Is that correct?

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- October 15th 2009, 01:25 PMzhupolongjoeQuick question: what is sup and what is inf of this set?
What is the sup and what is the inf of

A={-4+(3/n^2) with n as natural numbers)

I put that sup=l.u.b=-1 (i.e. -4+3) and inf=g.l.b=-4 (-4+0)

Is that correct? - October 15th 2009, 01:29 PMPlato
If I have read correctly, that is correct.

If you would learn to use basic LaTeX, we could read your posts.