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Also
f(x)=
2-x if x<-1
x if -1<x<1 The first < should be underlined
(x-1)^2 if x>1 > should also be underlined
It says to sketch the graph ( which I've done) and use it to determine the values of a for which lim x->a f(x) exists. I'm not sure what exactly theyre asking for.
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