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Show that f(x)={1+x^2,\ \ \ if\ 0lt=xlt=...

Show that `f(x)={1+x^2,\ \ \ if\ 0lt=xlt=1 2-x ,\ \ \ if\ x >1` is discontinuous at `x=1` .

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Given,

`f(x)= 1+x^{2}, 1-x, text { if } x>1`

`quad text { if } 0 leq x leq 1.`

LHL at `x=1`

...
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