Assume that f is an integrable function satisfying the following for all b > 0
To answer this question, we need to know what conditions or properties are given for the integrable function f. The term "integrable" usually refers to a function that can be integrated over a certain interval. However, without specific conditions mentioned, we cannot determine the answer.
If you have additional information about the integrable function f or any specific conditions mentioned in the problem statement, please provide them so that I can provide a more accurate answer.