48. Let f be a function defined on ]0, 1[ by : 0, if x is irrational f(x) ={1/q, if x=p/q; where p and q are positive integers having no common factor. %3D Prove that f is continuous at each irrational point and discontinuous at each rational point.
48. Let f be a function defined on ]0, 1[ by : 0, if x is irrational f(x) ={1/q, if x=p/q; where p and q are positive integers having no common factor. %3D Prove that f is continuous at each irrational point and discontinuous at each rational point.
Chapter3: Functions
Section3.3: Rates Of Change And Behavior Of Graphs
Problem 2SE: If a functionfis increasing on (a,b) and decreasing on (b,c) , then what can be said about the local...
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