7. Assume that f:XY is a function from one metric space (X,d,) to another(Y,d,). Prove that f is continuous on X if, and only if, f'(int B)cint f"(B) for every subset B of Y.
7. Assume that f:XY is a function from one metric space (X,d,) to another(Y,d,). Prove that f is continuous on X if, and only if, f'(int B)cint f"(B) for every subset B of Y.
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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