f is monotonically increasing function defined on (a,b) then f(x+) and f(x-) exists at every point x of (a,b) and sup...
f(x+) and f(x-) exists at every point x of (a,b) and sup f(t) =f(x-)is less than equal to f(x)is less than equal to f(x+)=inf f(t) | Limit and Continuity | Real Analysis
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![f: [a,b] to R be a continous function s.t. f(a)](https://omgmaths.com/wp-content/uploads/2021/03/U1c3X62dBKs-maxresdefault.jpg)
