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Homework Statement
How would I demonstrate that a function is continuous? Would I just show that it's derivative exists? Thanks for the help.
But what if the function is not differentiable? There are functions that are not differentiable at a given point that happen to be continuous there. For example, y = |x| at x = 0.Homework Statement
How would I demonstrate that a function is continuous? Would I just show that it's derivative exists? Thanks for the help.