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what is the most common use of the derivative in calculus?
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the most common use of the derivative in calculus is to determine the rate of change of a function at a given point. it is also used to find the slope of a graph at a given point, to find the maximum and minimum points of a function, and to calculate the area under a curve. the derivative is also used to study the behaviour of curves at the boundaries of an interval and for solving certain types of optimisation problems.
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