Asked by Anonymous

Find the limit.

lim (x+2)/(radical(9x^2+1))
x-->infinity
Answered by drwls
As x-> infinity you can ignore the constant terms in the numerator and denominator, becasue they become negligible in comparison to the term that contains x.
lim x/sqrt(9x^2)= lim x/(3x) = 1/3
Answered by Anonymous
thank you, it makes much more sense now
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