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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If I have read correctly, that is correct. If you would learn to use basic LaTeX, we could read your posts.
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