G gmontalv New member Joined Jan 27, 2006 Messages 13 Feb 5, 2006 #1 lim 3x^3+2x-1 x-> infinity ------------- 2x^4-3x^3-2
U Unco Senior Member Joined Jul 21, 2005 Messages 1,134 Feb 5, 2006 #2 Divide top and bottom by the highest power of x.
G galactus Super Moderator Staff member Joined Sep 28, 2005 Messages 7,203 Feb 5, 2006 #3 The limit of a rational function as x approaches infinity is unaffected if all but the highest degrees of the numerator and denominator are discarded. You end up with \(\displaystyle \lim_{x\to\infty}\frac{3}{2x}\). Can you see where it's headed now?.
The limit of a rational function as x approaches infinity is unaffected if all but the highest degrees of the numerator and denominator are discarded. You end up with \(\displaystyle \lim_{x\to\infty}\frac{3}{2x}\). Can you see where it's headed now?.
