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One sided limits. Teaching myself.

by BBrttnybrat
Tags: limits, sided, teaching
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BBrttnybrat
#1
Mar5-09, 02:44 PM
P: 1
1. The problem statement, all variables and given/known data
the problem, where you want to find the one sided limit is
Lim (2x^2+x+1)/(x+2)
X=>2-


2. Relevant equations



3. The attempt at a solution
Well i did attempt the problem. All i can think to put as the answer is finite.


I'm basically teaching myself calculus which as you can imagine is all sorts of fun. I know how to find limits, and how to do stuff like that but the one sided limits throw me off. Please help.
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yyat
#2
Mar5-09, 03:08 PM
P: 321
Hi BBrttnybrat,

The function you gave is continuous at x=2, so the limit is just the value of the function at that point. Did you mean the limit as x -> -2 from the right, i.e. x -> (-2)- ?


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