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Let f(x)={{:(,|x|-3,x lt 1),(,|x-2|+a,x ...

Let `f(x)={{:(,|x|-3,x lt 1),(,|x-2|+a,x ge 1):}`
`g(x)={{:(,2-|x|,x lt 1),(,Sgn(x)-b,x ge 1):}` If h(x)=f(x) is discontinuous at exactly one point, then which of the following are correct?

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