Posted by Jane on Monday, October 27, 2008 at 12:39am.
1. You need to use more parentheses to clarify the mathematical operation. I will assume you mean
1. Lim x -> infinity
(x-3)/(x^2 + 4)
When x approaches infinity, you can neglect the constant terms, and you get
Lim x -> infinity
(x/x^2) = 1/x
As x-> infinity, that approaches zero.
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