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[" (3).Supposs "f(x)={[a+bx,x<1],[4,x=1]...

[" (3).Supposs "f(x)={[a+bx,x<1],[4,x=1]],[" and if "lim_(x rarr1)f(x)=f(1)" .Fhen what are the "],[" porsible value of a "4" b? "]

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