1. Prove the following limit. a) f(x)=x²+2x+6 where lim f (x)= 21 b) lim x-x+1=-5 x3 c) limx =8 x→2

College Algebra
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ISBN:9781938168383
Author:Jay Abramson
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Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 2SE: If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local...
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Prove the limit using epsilon-delta proving method

1.
Prove the following limit.
a)
f (x)=x²+2x+6 where lim f (x)= 21
x→3
2
b) lima x² -x+1=-5
x→3
c) lim x =8
Transcribed Image Text:1. Prove the following limit. a) f (x)=x²+2x+6 where lim f (x)= 21 x→3 2 b) lima x² -x+1=-5 x→3 c) lim x =8
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