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[" Example is Show that the function "f(...

[" Example is Show that the function "f(x)={((e^(1/x)-1)/(e^(1/x)+1))," when "x!=0],[" 0,when "x=0],[" is discontinuous at "x=0" ."],[" sOLUTION Clearly,"f(0)=0" ."]

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