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[" Ex."2:" If the function "f(x)" define...

[" Ex."2:" If the function "f(x)" defined as: "],[qquad [f(x)=,(x^(4)-64x)/(sqrt(x^(2)+9)-5)," for "x!=4],[=3,," for "x=4],[" Show that "f(x)" has a removable discontinuity at "x=4]]

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