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calculus - Prove whether the function is differentiable about a given interval. - Mathematics Stack Exchange
How to prove that, |f (x) | is a continuous function on its domain D, where f (x) is continuous on its domain D - Quora
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real analysis - Proving that the inverse of a bijective continuous function is continuous - Mathematics Stack Exchange
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![SOLVED:Continuous at Only One Point Show that the following function is continuous only at x=0 : f(x)={ x for x rational -x for x irrational . SOLVED:Continuous at Only One Point Show that the following function is continuous only at x=0 : f(x)={ x for x rational -x for x irrational .](https://cdn.numerade.com/previews/05881377-20cb-4a29-83d8-d27c03fb0a1c.gif)
SOLVED:Continuous at Only One Point Show that the following function is continuous only at x=0 : f(x)={ x for x rational -x for x irrational .
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