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Let

`f(x)={(x^(2) if x<-1),(x if -1<=x<1),((1)/(x) if x>=1):}`

For each of the numbers below, determine whether

`f`

is continuous at that point. If

`f`

is not continuous, determine whether

`f`

is continuous from the right, from the left, or neither. (a)

`x=-1`

(b)

`x=1`