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i need to find the sup and the inf of
[itex]
f(x)=1/(1+(ln x)^2 )
[/itex]
i can find the limit for the function for + infinity
and - infinity
but what to do next?
the sup is the least upper bound
the limit for +infinity is not SUP
??
[itex]
f(x)=1/(1+(ln x)^2 )
[/itex]
i can find the limit for the function for + infinity
and - infinity
but what to do next?
the sup is the least upper bound
the limit for +infinity is not SUP
??