Let f(x)= 
.For each of the following,find the limit.If the limit does not exist,so state or use the symbol ∞ or -∞ where appropriate.Hint: Sketch the graph of f.
(a) 
f(x)
(b) 
f(x)
(c) 
f(x)
(d) 
f(x)
(e) 
f(x)
Definitions:
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