The predefined definition in the app is the [math]\varepsilon-\delta[/math] .[br]The button at the bottom right of the app allows you to toggle between this definition and the definition based on neighborhoods.[br][br]Explore the definition step by step, then drag the slider and move point [math]x[/math] to view the values of [math]f\left(x\right)[/math] in the interval in which the limit holds.
Apply the definition and state which of the following limits are correct: