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the question i guess is pretty easy, and i think i know the answer i just want to be sure....

f(x)= I x I if x =/= (doesn't equal) 0
1 if x = 0

find (lim) f(x)
x>1

2007-09-28 01:49:27 · 2 answers · asked by f4b_4 1 in Science & Mathematics Mathematics

2 answers

In a small neighbourhood of 1, l x l = x.
Hence, lim ( x-> 1) l x l = 1

(Information that l x l = 1 at x = 0 is immaterial unless the question was related to continuity at x = 0.)

If lim x -> 0 is asked, then answer is 0. Here also, the information that l x l = 1 at x = 0 is immaterial. However, in this case the function is discontinuous although limit exists.

2007-09-28 02:20:48 · answer #1 · answered by Madhukar 7 · 0 0

IxI = x if x is near to 1 so lim fx for x==>1 is 1
and lim f(x) if x==>0 is 0 but at x=0 the functions is not continuos

2007-09-28 09:13:43 · answer #2 · answered by santmann2002 7 · 0 0

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