- #1
Slimsta
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Homework Statement
"Match functions and their horizontal asymptotes."
Homework Equations
lim f(x)
x-> + infinity
lim f(x)
x-> - infinity
The Attempt at a Solution
http://img198.imageshack.us/img198/7678/45328107.jpg
im just stuck at this... I am sure that everything is right!
but its wrong :(
i was thinking, arctan(x^4-x^2) = tan-1(x^4-x^2)
i saw on a different post, that someone said, graph x^4-x^2 then take the limit and do tan(L) and that's the answer.. but it doesn't seem to work.
the other one that may be wrong (but I am sure its not) is cot-1(x).. i graphed it as 1/tan-1(x) and got 0.6 and -0.6
please help me!
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