1.

If f(x) = ⎧⎪⎨⎪⎩|x|+1,x<00,x=0|x|−1,x>0 for what values of a does limx→a f(x) exist?

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If f(x) = |x|+1,x<00,x=0|x|1,x>0
for what values of a does limxa f(x) exist?



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